836 results on '"GLASS fibers"'
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2. Stress-strain behaviour of carbon fibre reinforced polymer-confined concrete containing macro fibres recycled from waste glass fibre reinforced polymer.
- Author
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Zou, Qi-Qi, Fu, Bing, Chen, Jian-Fei, and Teng, Jin-Guang
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GLASS recycling , *GLASS fibers , *REINFORCED concrete , *FIBERS , *STRAINS & stresses (Mechanics) , *POLYMER-impregnated concrete - Abstract
Glass fibre-reinforced polymer (GFRP) wastes may be mechanically processed into small strips called "macro fibres," which were used as short reinforcement fibres to produce macro fibre reinforced concrete (MFRC). The addition of such macro fibres into concrete has proven to be effective in enhancing the flexural strength and toughness of concrete, but it also slightly reduces the compressive strength of concrete. This paper presents a study on the behaviour of CFRP-confined MFRC. A total of 84 CFRP-confined MFRC cylinders were prepared and tested in axial compression. The test parameters included the CFRP confinement stiffness, macro fibre content, and fibre length. The test results show that the compressive strength and ultimate axial strain can be significantly enhanced through the use of CFRP confinement. The ultimate axial strain of CFRP-confined concrete with macro fibres is slightly higher than that without macro fibres. The test results were compared with two well-known stress-strain models for FRP-confined concrete, including Teng et al.'s design-oriented model and Jiang and Teng's analysis-oriented model. A comparative analysis showed that both models slightly underestimate the compressive strength and slightly overestimate the ultimate axial strain for CFRP-confined MFRC. [ABSTRACT FROM AUTHOR]
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- 2024
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3. A comparative study of static and fatigue performance of glass and basalt fiber reinforced epoxy composites.
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Agrawal, Mayank, Gupta, Mohit, Prabhakaran, R. T. Durai, and Mahajan, Puneet
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MATERIAL fatigue , *FATIGUE limit , *FIBROUS composites , *GLASS fibers , *FATIGUE life , *DYNAMIC mechanical analysis - Abstract
This work compares the tensile and fatigue behavior of unidirectional glass fiber/epoxy (GFRPs) and basalt fiber/epoxy (BFRPs) composites manufactured using vacuum-assisted resin infusion molding (VARIM). The tensile and fatigue tests are performed, and results show that both GFRPs and BFRPs have very similar tensile behavior, whereas BFRPs perform better than the GFRPs in terms of fatigue life and degradation of properties, showing about 75 MPa more fatigue limit. The S-N curve shows that BFRPs resist fatigue failure and stiffness degradation due to their better interfacial adhesion. Fractographic observations reveal fatigue failure mechanisms of both BFRPs and GFRPs. From the regression analysis performed, an S-N curve was fitted with a model available in the literature, and regression parameters were calculated. Dynamic mechanical analysis of both BFRPs and GFRPs was performed to evaluate parameters like glass transition temperature, storage modulus, and loss modulus. From the findings of this research, BFRPs may be recommended as a suitable alternative to GFRPs. Highlights • This article compares the tension-tension fatigue properties of unidirectional GFRPs and BFRPs. • From the research work, the authors found that BFRPs perform better than GFRPs under fatigue loading. • The stiffness degradation behavior of GFRPs and BFRPs are studied and compared. • Scanning electron micrographs of fractured samples are used to observe fatigue failure mechanisms. • Dynamic mechanical analysis (DMA) was performed to determine the storage modulus, loss modulus, glass transition temperature, and damping coefficient (tand) for both composites. [ABSTRACT FROM AUTHOR]
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- 2024
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4. Novel method for fiber volume fraction of carbon/glass hybrid fiber composites.
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Li, Xianhua, Sui, Xianhang, Xiang, Wenhang, and Lin, Wei
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FIBERS , *CARBON fibers , *TEST methods , *CARBON , *GLASS fibers , *FIBROUS composites - Abstract
Because the physical properties of carbon fiber and glass fiber are very different, the fiber volume fraction in carbon/glass hybrid fiber composites cannot be tested by burning method or digestion method, respectively. Furthermore, these methods partially consume the fiber, especially for carbon fibers. To investigate the fiber volume fraction in carbon/glass hybrid fiber composites correctly, the test method is put forward. The burning method and the digestion method were combined to calculate the volume fraction of carbon fiber and glass fiber, respectively. The results show that the relative error between the measured value and the theoretical value is very small. The result of the present work implies that the feasibility and accuracy of this method through experimental verification. [ABSTRACT FROM AUTHOR]
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- 2024
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5. Analysis of mechanical properties and structure of samples filled with continuous glass fiber produced in composite filament fabrication technology.
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MARCINIAK, Dawid, SYKUTERA, Dariusz, and CZYŻEWSKI, Piotr
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GLASS fibers , *FIBROUS composites , *FIBERS , *TENSILE strength , *YOUNG'S modulus , *FLEXURAL strength - Abstract
The purpose of the study was to evaluate selected mechanical properties and structural characteristics of samples manufactured using composite filament fabrication (CFF) technology from Onyx material, whichwas filled with continuous glass fiber. Selected mechanical properties were correlated with the density of the resulting composite to determine the specific strength of the fabricated parts. The test specimens were manufactured on a Mark Two Enterprise machine (Markforged, USA) using composite filament fabrication (CFF) technology. The material used was polyamide 6.6 with a 20% short carbon fiber content with the trade name Onyx. Continuous glass fiber was used to reinforce the fabrication. The density of the manufactured samples was determined using a hydrostatic method. Methanol was used as the liquid. By determining the density of the samples, it was possible to estimate through appropriate calculations what specific strength and specific modulus the obtained composites would have. Determination of tensile and flexural strengths was carried out in accordance with ISO 527-1:2012 and ISO 178:2003. Determination of the impact tensile strength of the samples was carried out in accordance with ISO 8256, the beams were tested using the A method. Due to the high impact tensile strength, two 1 mm notches with an angle of 45°were made on the specimens. The image of the sample structure obtained by the CFF method was recorded using a CT scanner. A thermogravimetric test (TG) of the Onyx matrix material was carried out. The samples were tested approximately 72 hours after fabrication. Filling the samples with continuous glass fiber above 50% leads to a slight increase in impact resistance. The density of the composite increased by only 16% relative to the reference samples, resulting in a 389% increase in the maximum average flexural strength. Despite significant discontinuities in the structure of the produced composite, it was possible to record an increase in tensile strength and Young's modulus by 606% and 370%, respectively. [ABSTRACT FROM AUTHOR]
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- 2024
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6. Performance Evaluation on Open-Graded Friction Course Reinforced by Double-Adding Fibers Technology.
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Chen, Cihe, Li, Chimou, Zhang, Saibang, Liu, Wenchang, Lin, Hongwei, and Zhang, Hongchao
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FATIGUE life ,BENDING stresses ,FIBERS ,FRICTION ,GLASS fibers ,HYGROTHERMOELASTICITY - Abstract
The use of an open-graded friction course (OGFC) as a road surface demonstrates significant advantages in reducing driving noise and improving road drainage and safety. This study aims to enhance the overall performance of OGFC-13 by incorporating double-adding fiber technology. Laboratory tests were conducted on six OGFC-13 mixes modified with varying fiber ratios of lignin fibers (LFs) and glass fibers (GFs). Both GF and LF significantly improved high-temperature performance, with dynamic stability values increasing proportionally to GF content. The LF:GF = 0.15:0.15 ratio achieved peak shearing strength, demonstrating better improvement over single-fiber modification. Furthermore, both fibers effectively enhanced resistance to cracking, with GF-reinforced specimens excelling in bending stress and LF-reinforced specimens demonstrating the highest flexural strain. Water stability evaluations highlighted the substantial positive impact of LF and GF, with simultaneous addition resulting in superior moisture stability compared to single-fiber modifications. Anti-stripping performance assessments indicated that the LF:GF = 3:0 ratio exhibited the best performance. In fatigue performance, both LF and GF enhanced fatigue life, with GF outperforming LF. The LF:GF = 0.15:0.15 ratio achieved a balanced fatigue performance. Results from the radar evaluation method underscored a more comprehensive improvement in road performance achieved through double-adding technology. The LF:GF = 0.15:0.15 ratio emerged as the optimal choice for overall road performance. [ABSTRACT FROM AUTHOR]
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- 2024
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7. Effects of TiO2 on fiber spinnability, structure, and mechanical properties of glasses derived from simulated lunar soils.
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Ding, Mengzhao, Li, Yunpeng, Han, Huimin, Song, Letong, Luo, Lida, Li, Hong, and Wang, Qingwei
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LUNAR soil , *TITANIUM dioxide , *FIBERS , *FIBROUS composites , *GLASS structure , *GLASS fibers , *SILICATE minerals , *METALLIC glasses , *CONSTRUCTION materials - Abstract
The construction of lunar stations for research and habitation requires high-performance building materials that can adapt to the harsh lunar environment. One of the feasible building materials is fiber-reinforced composites, for which the composition of glass fibers can be designed like lunar soils, i.e., terrestrial basalt, and in turn the "lunar glass" can be drawn into fibers. Because of a wide variation of TiO 2 in lunar soils, our study focused on a series investigation on the effect of TiO 2 (0.55 wt%-6.14 wt%) on fiber spinnability and strength of the simulated "lunar glass and glass fibers". The baseline glass composition was derived from a simulated TiO 2 -lean lunar soil and other glasses were made at different TiO 2 doping levels. The addition of TiO 2 was found to reduce the thermal stability of the melt, there appears a TiO 2 threshold (6.14 wt%), at which fibers cannot be drawn without breakage because of melt devitrification. The fiber tensile strength exhibits a nonlinear characteristic with an apparent maximum at 1.52 wt% TiO 2. FTIR and Raman spectroscopic studies were carried out to investigate the glass network structure responses to TiO 2 modifications and show TiO 2 functions as a network modifier, depolymerizing the silicate network. Statistical structure (FTIR & Raman based)–property modeling was attempted to further elucidate the effect of TiO 2 -induced structure change on T g and fiber tensile strength. Good agreements were found between the model predictions and the measured values. [ABSTRACT FROM AUTHOR]
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- 2024
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8. Recycling and Reinforcing of Expanded Polystyrene by Woven Mat and Short E-Glass fibers.
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Sawalha, Shadi
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POLYSTYRENE , *GLASS fibers , *THERMAL insulation , *TENSILE strength , *FIBERS , *PLANTS - Abstract
Expanded polystyrene (EPS) polymers are widely used in insulation and packaging applications. If their waste hasn't been managed well and due to their long degradation time, they will cause severe environmental problems for human beings, plants, and animals. Therefore, recycling could be one of the acceptable solutions to overcome such problems in addition to reinforcing them to recover the decay in properties resulting from recycling. In this work two types of EPS have been recycled at different temperatures from 140 to 260°C, and then reinforced by E-glass fibers in mat form and as random short fibers with varied composition from 5 to 25 wt%. The samples have been prepared by homemade thermal press and the tensile properties such as strength, modulus, and ductility have been investigated showing an obvious enhancement of these properties upon an increase in temperature to certain level and with fiber content and length exceeding their critical lengths. Furthermore, interfacial adhesion has been studied by estimating the strength and modulus efficiency factors. The results show that the E-glass fibers could improve the strength with more than 300%. [ABSTRACT FROM AUTHOR]
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- 2024
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9. Study on the anchoring performance and failure mechanism of basalt/glass hybrid fiber reinforced plastic anchors in coupled environment.
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Ren, Yuhang, Wang, Hongguang, Wu, Gang, Guan, Zhongzhi, and Yuan, Long
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FREEZE-thaw cycles , *GLASS fibers , *MORTAR , *PLASTIC fibers , *BASALT , *FINITE element method , *ANCHORS - Abstract
To investigate the real anchorage performance of basalt and glass hybrid fiber reinforced plastic (FRP) anchors in external corrosive environments. In this paper, a combination of experimental studies and finite element analysis was used. By carrying out pull‐out tests of basalt and glass hybrid FRP anchors under the synergistic effect of freeze–thaw cycles and alkaline environment, the effects of factors such as hole diameter, anchorage length, and mortar strength on their anchorage performance and durability were investigated. Critical corrosion time was introduced to determine the degree of corrosion of the anchor rods. After that, it combined with numerical simulation to reveal the degradation mechanism of the anchorage performance of hybrid anchors. The results showed that the best anchorage performance of basalt/glass hybrid FRP anchors was achieved when the hole diameter was 24 mm, the anchorage length was 175 mm, and the mortar strength was 45.5 MPa. The ultimate pull‐out load was up to 122.16 kN. When the time did not exceed the critical corrosion time, the ultimate load‐carrying capacity of basalt and glass hybrid FRP anchors increased by 9.3% compared to the uncorroded environment. Beyond the critical corrosion time, the ultimate load‐carrying capacity was reduced by 23.3% and the anchorage performance was degraded. In addition, the contact interface between the anchor and the mortar is the weak area of the anchoring structure, which should be focused on in the later design of the actual project. Highlights: Basalt/glass hybrid FRP anchors have good corrosion resistance.The anchoring performance of hybrid FRP anchors under the coupled environment is studied.Hole diameter and anchoring length have more influence on the anchor performance.The concept of critical corrosion time is put forward.The failure mechanism and coupling environment influence are revealed by FES. [ABSTRACT FROM AUTHOR]
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- 2024
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10. Performance analysis of wind turbine blades using E-Glass fiber and SiO2- Al2O3-TiO2 MMT nanocomposite with AW 106 epoxy.
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Muhammed, K. Ansal, Marimuthu, S., and Sharief, Shebin
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WIND turbine blades , *GLASS fibers , *NANOCOMPOSITE materials , *FIBERS , *WIND turbines , *FIBROUS composites , *TENSILE strength - Abstract
In a wind turbine, blades are an essential component. In recognition of their remarkable qualities, nanoparticle-reinforced composites (also known as nanocomposites) are becoming increasingly popular among academics and companies. In preceding investigations of wind turbine blades, it was discovered that manufacturing issues, such as cracks in the supporting airfoil transition area, fiberglass, and hardener, were brought on by insufficient resin availability. For the effective investigation of wind turbine blades, a unique e-glass fiber and nanocomposite using AW 106 epoxy have been presented. The primary purpose of this research is on the viability of nanocomposites based on montmorillonite, specifically for use in wind turbine blades. The production and in-depth investigation of nano SiO2-Al2O3-TiO2 montmorillonite dispersed E-glass fiber/AW 106 epoxy composites are the subjects of the investigation of proposed method. The experimental findings were confirmed by GRA and SEM analysis in ANSYS to predict wind turbine blade failures, evaluate the blades’ hardness, and test the edge and flap loading conditions. As the result, demonstrated that nanocomposite has a tensile strength of Al2O3with 1% high with a value of 106 MPa, Al2O3with 1% withstands the highest number of failure cycles with 273, Rockwell number is 43, and the maximum value of Al2O3is 0.992 in GRA with various materials. [ABSTRACT FROM AUTHOR]
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- 2024
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11. Effects of fibre weight fraction on the mechanical properties of bio-Composite reinforced with Alfa fibres: Experimental and numerical investigation.
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Boukhoulda, A, Bendine, K, Boukhoulda, FB, and Bellali, MA
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GLASS fibers , *FIBERS , *UNSATURATED polyesters , *MECHANICAL behavior of materials , *YOUNG'S modulus , *POLYESTER fibers - Abstract
This study is dedicated to conducting a comprehensive examination, both experimentally and numerically, to characterize the mechanical properties of a composite material composed of Alfa fibres and unsaturated polyester resin. In pursuit of this objective, we diligently prepared composite specimens in accordance with the ASTM D3379-75 standardization. The Alfa fibres used were prepares using a purely natural-based extraction technique, which retains approximately 78% of the composite's performance achieved through chemical treatment. The resulting composite consists of polyester resin reinforced with varying weight fractions of fibres, ranging from 0 to 18%.The test results of the manufactured bio-composite show that specimens with an 18% weight fraction offer a tensile strength of 49.749 MPa, whereas specimens with a 10% weight fraction exhibit a strength of 44.312 MPa. Additionally, the specimens with 18% fibre reinforcement exhibit a net increase in Young's modulus by 46% compared to the fibre-free composite, with Young's modulus ranging from 1469.66 MPa to 2726 MPa. When compared with composites based on fibre glass, the introduced bio-composite with 18% Alfa fibres exhibits similar stiffness to that of glass fibres. Additionally, the outcomes from the Finite Element Model (FEM) reveal a remarkable agreement with the experimental data, underscoring the practical applicability of the proposed methodology and tools for accurately simulating tensile tests in composite structures. [ABSTRACT FROM AUTHOR]
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- 2024
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12. Acoustic Emission-Based Modeling of Fiber Tailings Cementation and Filling Body Dynamics and Damage Ontology.
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Zhang, Chunlei, Song, Xuelin, Fu, Yuhua, Lei, Daxing, She, Weijie, and Zhu, Wenxiao
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ACOUSTIC models , *ACOUSTIC emission testing , *DAMAGE models , *FIBERS , *FRACTURE mechanics , *ACOUSTIC emission , *GLASS fibers - Abstract
Optimizing the mechanical characteristics of cemented tailings backfill (CTB) and quickly identifying its damage state under external loading, this study compares and prepares CTB specimens without fiber, doped with polypropylene fiber (PF), doped with glass fiber (BL), and doped with polypropylene and glass blended fiber (PB). Uniaxial compression and acoustic emission (AE) monitoring experiments are also conducted. Based on the cumulative energy of AE, the damage ontology model of CTB was developed. As shown by the study's findings, adding various fibers can greatly enhance the filler body's uniaxial compressive strength (UCS). BL has the greatest effect, followed by PB, while PFs have the least effect. Furthermore, the fibers primarily prevent the growth of crack extension by extending or breaking themselves, The results of the tests on acoustic emission revealed that the fiberless filler's signals were more active prior to the peak point and less intense in the later stages of the damage, whereas the fiber-doped filler's signals began to increase following the peak point and remained high. Thus, the damage model curves of various fiber-filled bodies are constructed based on the cumulative energy of acoustic emission, and the experimental data verification shows that the two have good consistency, suggesting that the established theoretical model can serve as a basis of reference for assessing the filled bodies' damage state. [ABSTRACT FROM AUTHOR]
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- 2023
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13. Analysis of the Manufacturing Porosity in Fused Filament Fabricated Onyx/Long Fiber Reinforced Composites Using X-Ray Computed Tomography.
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Pace, Francesco, Stamopoulos, Antonios G., Eckl, Michael, Senck, Sascha, and Glinz, Jonathan
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COMPUTED tomography , *FIBROUS composites , *POROSITY , *MANUFACTURING defects , *FIBERS , *X-rays , *GLASS fibers - Abstract
Nowadays, additive manufacturing techniques such as the Fused Filament Fabrication appear to be among the most promising methods for enabling modern industry to produce components of high geometrical complexity. The main characteristic of this method is the deposition of thermoplastic polymers that can be further reinforced with chopped and/or continuous fibers that attribute to the product some unique structural characteristics. Nevertheless, the process is susceptible to a variety of defects that are derived from the fabrication process parameters, such as porosity, insufficient fiber impregnation with the polymer and fiber disorientation. On the other hand, since the applicability of the process depends on the development of numerical tools for assessing the effects of these defects, the accurate detection and quantification of them is a crucial part of it. In the present work, these defects are studied experimentally by implementing an X-ray computed tomography testing campaign. The manufacturing defects are identified using well-established techniques while a complete analysis of the distribution of porosity is presented for various zones of Onyx, Onyx/Carbon and Onyx/Glass fiber reinforced structures. Finally, the tendency of the overall pore content to increase with increasing number of continuous fiber reinforcement was identified as well as porosity variations in printing direction are presented. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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14. Refractivity of P 2 O 5 -Al 2 O 3 -SiO 2 Glass in Optical Fibers.
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Likhachev, Mikhail E., Zaushitsyna, Tatiana S., Agakhanova, Vitaliya A., Iskhakova, Liudmila D., Aleshkina, Svetlana S., Bubnov, Mikhail M., Lobanov, Alexey S., and Lipatov, Denis S.
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OPTICAL glass ,GLASS fibers ,REFRACTIVE index ,DOPING agents (Chemistry) ,FIBERS - Abstract
A significant change in the refractive index profiles for the large mode area phosphoroaluminosilicate (PAS) core optical fibers was observed in comparison to that in preforms. This study shows that the refractive index of the PAS core can vary from negative (in preform) to positive (in fiber), and the difference in the refractive index between the core and preform can exceed a few thousand. By measuring a large set of fibers with different concentrations of P
2 O5 and Al2 O3 , we define the refractivity of each dopant (P2 O5 , Al2 O3 and AlPO4 joint) after drawing fiber from the preform and discuss the possible origin of the observed refractive index variation. [ABSTRACT FROM AUTHOR]- Published
- 2023
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15. Mechanical properties of hybrid composite glass fiber and kevlar fiber reinforcement with nano alumina.
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Mahan, Hamid M., Konovalov, S. V., and Shabeeb, Omran A.
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HYBRID materials , *GLASS composites , *GLASS fibers , *LAMINATED materials , *FIBROUS composites , *POLYPHENYLENETEREPHTHALAMIDE , *FIBERS - Abstract
Composite materials are one type of materials, which reinforced by particles, fabrics or plates of another type. They consist of fibers and materials that keep these fibers known as a matrix that improves the stiffness of the composites, these fibers are widely used to strengthen polymeric. In this paper, the mechanical properties of Kevlar/glass fiber hybrid composite laminate with nanoparticles will be studied. Composite laminates with an epoxy matrix reinforced with twill Kevlar weaved fiber and plain glass was woven fiber. Three different types of composite laminates were manufactured, polymer composite with nanoparticles (AL2O3), polymer composite with glass fiber, and polymer composite with glass fiber and Kevlar. The effect of Kevlar/glass fiber content on the mechanical properties are studied such as hardness, tensile, and impact. The results indicated that hybridization of Kevlar fiber to glass fiber with nanoparticles improved the hardness values, impact energy absorbed, and tensile strength of fibers that were spun with Kevlar fibers and of composite laminates with nanoparticles. [ABSTRACT FROM AUTHOR]
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- 2023
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16. Characterization of biodegradable core–clad borosilicate glass fibers with round and rectangular cross‐section.
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Hongisto, Mikko, Ghanavati, Sonya, Lemiere, Arnaud, Hauss, Gregory, Boraiah, Shashank, Cornet, Louis, Poulon‐Quintin, Angeline, Pagnoux, Dominique, Bernard, Dominique, Massera, Jonathan, Petit, Laeticia, Jubera, Veronique, and Danto, Sylvain
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BOROSILICATES , *RESIDUAL stresses , *SURFACE tension , *DEFORMATION of surfaces , *GLASS fibers , *BODY fluids , *FIBERS - Abstract
Here, we report on core–clad bioactive borosilicate fibers, that we have prepared both with round and rectangular cross‐section profile. The exposed approach, which relies on the stacking and drawing of glass slabs, demonstrates our ability to develop bioactive‐based glass fibers with tailored cross‐section profiles. Tens‐of‐meters‐long fibers were successfully drawn, although suffering from elevated losses in the case of the rectangular ones. The response of the fibers in simulated body fluid was studied for both geometries. We found that a round cladding can act as protective layer, tempering effects of the corrosion. We also noticed that rectangular fibers are more prone to degradation, the enhanced corrosion beginning from their sharp corners as they accumulated residual tensile stress during drawing. To the best of our knowledge, this is the first report on the effect of residual tensile stresses from surface tension deformations applied to the corrosion of rectangular fibers. As geometry plays a critical role on the biodegradation behavior of the fiberglass, we believe the enclosed results could lead to the design of fiber devices with tailored cross‐section profile in order to tune their rate of degradation on solely based geometrical effects. [ABSTRACT FROM AUTHOR]
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- 2023
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17. Effect of building orientation and fibre type on the mechanical behaviour of additively manufactured ABS matrix composites.
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AlMuhanna, Mohammed and AlMangour, Bandar
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ACRYLONITRILE butadiene styrene resins , *FUSED deposition modeling , *GLASS fibers , *FIBERS , *FIBROUS composites , *ELASTIC modulus - Abstract
Additive manufacturing of fibre-reinforced composites show high potential for fabrication of next-generation lightweight complex structural parts. In this study, the effects of building orientation and fibre type, i.e. carbon fibre (CF), and glass fibre (GF), on the mechanical properties of acrylonitrile butadiene styrene (ABS) composites fabricated by fused deposition modelling (FDM) were investigated. The mechanical properties, namely, tensile strength, elastic modulus, hardness, and toughness, were analyzed for flat, on-edge, and upright building orientations. Results revealed that building orientation significantly influences several mechanical properties; in-plane (flat and on-edge) orientations produced the best mechanical properties, whereas upright orientations produced the worst. However, building orientation had little effect on material hardness. Further, compared to the elastic modulus and tensile strength of pure ABS, those of CF-reinforced ABS (CF–ABS) increased by 800% and 500%, respectively, and those of GF-reinforced ABS (GF–ABS) increased by 400% and 400%, respectively, proving that reinforcing ABS with either CF or GF improves the tensile properties. The impact energy of CF–ABS (0.5 J) was lower than that of GF–ABS (1.1 J) because of the brittleness of CF. Fracture surface analysis was performed via scanning electron microscopy (SEM) which gave insight to the nature and mode of fracture of the failed specimens. The most common defects on the printed specimens were void formation, fibre pullout, and poor bonding between fibre and matrix. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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18. Optimization and Dispersion Tailoring of Chalcogenide M-Type Fibers Using a Modified Genetic Algorithm.
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Salnikov, Nikolay I., Andrianov, Alexey V., and Anashkina, Elena A.
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CHALCOGENIDE glass ,FIBERS ,REFRACTIVE index ,GLASS fibers ,DISPERSION (Chemistry) ,OPTICAL fibers ,GENETIC algorithms - Abstract
M-type optical fibers in which a core is surrounded by a thin ring layer with a higher refractive index have attracted increasing attention in recent years. One of their advantageous features is the ability to operate a non-fundamental LP
02 mode possessing unusual dispersion properties, namely, a zero-dispersion wavelength (ZDW) shifted to the short wavelength region relative to the material ZDW. The LP02 mode can be selectively excited since it is predominantly localized near the core, while the fundamental LP01 and other higher modes are localized near the ring (for proper fiber parameters). In this paper, we present a comprehensive theoretical analysis of effective dispersion tailoring for the HE12 mode of highly nonlinear chalcogenide glass fibers (for which the LP mode approximation fails due to large refractive index contrasts). We demonstrate fiber designs for which ZDWs can be shifted to the spectral region < 2 μm, which is of great interest for the development of mid-IR supercontinuum sources and frequency-tunable pulse sources with standard near-IR pumping. We obtained the characteristic equation and solved it numerically to find mode fields and dispersion characteristics. We show the possibility of achieving dispersion characteristics of the HE12 mode with one, two, three, and four ZDWs in the wavelength range of 1.5–5.5 μm. We used a modified genetic algorithm (MGA) to design fibers with desired dispersion parameters. In particular, by applying an MGA, we optimized four fiber parameters and constructed a fiber for which HE12 mode dispersion is anomalous in the 1.735–5.155 μm range. [ABSTRACT FROM AUTHOR]- Published
- 2023
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19. Experimental and Theoretical Study of the Interaction of a Low-Energy Ion Flow with Chemical Fibers.
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Abdullin, I. S., Zheltuhin, V. S., Nekrasov, I. K., and Sagitova, F. R.
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ARAMID fibers , *FIBERS , *GLASS fibers , *IONS , *MOLECULAR weights - Abstract
Modern methods of modification of chemical fibers (CF) and fibrous materials on their basis, first of all, chemical methods of treatment, in absolute majority at improvement of some properties of a material, essentially worsen other properties, or the effect of improvement is not significant and (or) disappears with time. The low-energy ion flow (LEIF) treatment method generated from a high-frequency capacitive (HFC) or capacitively coupled plasma (CCP) discharge at reduced pressure improves certain fiber properties, without deteriorating other properties, while maintaining the long-term effect and without ecological harm in the treatment process. The paper shows the effects of LEIF on the strength and adhesion characteristics of carbon, aramid and glass fibers, fibers based on ultra-high molecular weight polyethylene (UHMWPE) and composites based on them. [ABSTRACT FROM AUTHOR]
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- 2023
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20. Evaluation of the Mechanical and Durability Properties of Geopolymer Concrete Prepared with C-Glass Fibers.
- Author
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Sikder, Ankita, Mishra, Jyotirmoy, Krishna, R. S., and Ighalo, Joshua O.
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FIBERS , *DURABILITY , *GLASS fibers , *FLY ash , *SCANNING electron microscopes , *POLYMER-impregnated concrete , *BRITTLE materials - Abstract
Abundant research on geopolymer concrete in the last two decades has provided worldwide acceptability in conventional structural applications. The high-impact applications of geopolymers are mostly limited because they are quasi-brittle in nature and show moderate crack resistance; hence, they require suitable reinforcing materials such as fibers. This paper reports a study to assess the strength and durability properties of fly ash-based geopolymer concrete (FA-GPC) prepared with novel C-glass fibers. The binder mix was comprised of Fly Ash (FA), Lime (L), Silica Fume (SF) and was activated by sodium hydroxide (12 M) and sodium silicate solution, followed by curing under ambient conditions. Glass fibers were utilized in varying proportions (0.125, 0.25, 0.375, 0.5, 0.625, and 0.75%), by weight of the binder mix. It was found that the incorporation of 0.5% glass fiber significantly increased the compressive strength, split tensile strength, and flexural strength properties. From the durability perspective, the samples exhibited good resistance against seawater, MgSO4 solution, and H2SO4 when compared with the control mix. Further, the Scanning Electron Microscope (SEM) analysis was employed to explore the nature of the geopolymer–fiber matrix. It was revealed that excellent interfacial bonding existed between fiber and the geopolymer matrix. The results indicate that addition of C-glass fibers significantly improves the overall mechanical performance of FA-GPC. The research presented here establishes the advantages of using C-glass fibers-based geopolymer concrete, thus encouraging its broader utilization. [ABSTRACT FROM AUTHOR]
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- 2023
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21. Effect of fibre characteristics on physical, mechanical and microstructural properties of geopolymer concrete: A comparative experimental investigation.
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Kantarci, Fatih
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POLYMER-impregnated concrete , *INORGANIC polymers , *ULTRASONIC testing , *POLYPROPYLENE fibers , *GLASS fibers , *FIBERS , *SCANNING electron microscopes , *COMPRESSIVE strength - Abstract
The main aim of this work is to comparatively reveal the effect of fibre type, length and content on compressive strength and microstructure of structural geopolymer concrete (GPC) produced under constant mixture and curing parameters in order to address the significant gap in present literature. Firstly, GPCs with different NaOH concentrations (i.e., 6, 9, 12 and 15 M) and activator solution/binder (a/b) ratios (i.e., 0.45 and 0.55) were produced in ambient curing condition, and optimum production parameters were determined based on the preliminary evaluations. Then, glass and polypropylene fibres in 6‐mm length (GS6 and PP6) and polyamide and polypropylene fibres in 12‐mm length (PY12 and PP12) were included in GPCs at ratio of 0.4%, 0.8% and 1.2% (by volume). Compressive strength, apparent porosity, bulk density, ultrasonic pulse velocity (UPV), X‐ray diffraction (XRD) and scanning electron microscope (SEM) analysis of GPC samples were carried out comparatively. The inclusion of GS6 fibre enhanced the compressive strength thanks to fibre surface being covered by geopolymer gel and the strong adhesion between GS fibre and geopolymer matrix. SEM images of fibre reinforced GPC (FRGPC) also confirmed the experimental findings, which were attributed to improvement in compressive strength. Regardless of the fibre type, the maximum compressive value strength was obtained from GPC specimens with 0.4% fibre and then decreased. Higher fibre inclusions led to poor compaction, workability issues and inhomogeneous fibre dispersions. A very good relation (R2 = 0.98) was acquired between UPV and compressive strength values of GPC/FRGPC samples. [ABSTRACT FROM AUTHOR]
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- 2023
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22. Synergistic effect of compatibilized nanoclay/polyethylene fibers on the impact strength of epoxy‐glass fiber nanocomposites.
- Author
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Shelly, Daksh, Nanda, Tarun, and Mehta, Rajeev
- Subjects
- *
IMPACT strength , *MALEIC anhydride , *NANOCOMPOSITE materials , *FIBERS , *BICYCLE racing , *GLASS fibers , *EPOXY resins - Abstract
Epoxy‐based glass fiber nanocomposites (EGFCs) have good static mechanical properties but lack in impact strength. Addition of thermoplastic fillers to EGFCs enhanced the impact strength but with lowered static properties. To overcome this issue, compatibilized polyethylene (PE) fibers and silanized clay platelets were reinforced in the EGFCs. The unique properties of PE fibers such as good toughness, high strength, resistance to chemicals, and light‐weight made them an ideal choice for this purpose. EGFCs were processed through vacuum‐assisted resin infusion molding (VARIM) technique and resulted in significant improvements in an impact strength. Compatibilization of nanoclay/PE fibers was confirmed using FTIR and SEM‐EDS analysis. Nanoclay morphology in EGFCs was determined using XRD and TEM analysis. Reinforcement of maleic anhydride grafted PE fibers and silanized nanoclay in EGFCs significantly increased the impact strength by160% over the reference EGFC (without nanoclay/PE fibers). FE‐SEM micrographs showed improved interfacial interaction among various constituents of EGFCs resulting in superior mechanical performance. The newly developed EGFCs have myriad applications in various industries, namely, automotive (bumpers, frames for racing bicycles etc.), marine (hulls, decks, etc.), aviation (radome, stabilizers, etc.), and sports (archery bows, vault poles, etc.). Highlights: Multi‐scale filler‐reinforced EGFCs fabricated through VARIM process.Compatibilized reinforcement significantly improved impact strength.Silanization of nanoclay validated with FTIR & morphology with XRD/TEM technique.SEM‐EDS and FTIR confirmed successful compatibilization of PE fibers.SEM showed improved interfacial interaction among various constituents of EGFCs. [ABSTRACT FROM AUTHOR]
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- 2023
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23. Testing and analysis of aramid fibre needle punced nonwoven fabrics in the application of fitler bags.
- Author
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LIU Yusheng, LU Yuzhuo, ZHANG Tian, ZHANG Qian, and WANG Hong
- Subjects
NONWOVEN textiles ,FIBERS ,CORROSION resistance ,GLASS fibers ,WEAR resistance ,ARAMID fibers - Abstract
Aimed to expand applications of aramid fiber fabrics and provide a reference for select fibers for filter bags using in high temperature flue gas filtration, properties such as filtration performance, temperature resistance, wear resistance, folding endurance, corrosion resistance and flame retardance of aramid fibre needle punched nonwoven fabrics were measured, in comparison with polyimide fiber needle punched nonwoven fabrics and glass fiber woven fabrics. It is found that aramid fiber fabric exhibits excellent temperature resistance. The tensile strength remains unchanged after thermal treatment under 220 °C for 24 hours. The folding endurance and corrosion resistance are excellent. The filtration performance of fabrics composited with 1 D aramid fibers is excellent while its flame retardance and wear resistance should be improved by PTFE emulsion impregnation. [ABSTRACT FROM AUTHOR]
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- 2023
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24. ONLINE WEAR ANALYSIS OF CARD CLOTHINGS.
- Author
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FISCHER, HOLGER, HEILOS, KATHARINA, THAL, DANIEL, FAASEN, ANDRÉ, and HOFMANN, MARCEL
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GLASS fibers ,PRODUCTION planning ,INDUSTRY 4.0 ,CLOTHING & dress ,FIBERS - Abstract
The processing of abrasive fibres in the carding process, in particular high-performance fibres such as glass, carbon or aramid fibres, can cause increased wear of the card clothing. In the FutureTex project 'HPFGarnitur', the wear of card clothing was investigated and an online wear measurement system has been developed. The aim of the project was both, to optimize the clothings to enable gentler processing of the fibres, and to develop a digital monitoring system to observe the degree of wear of the clothings, which offers a new possibility for maintenance prediction and production planning in the sense of Industry 4.0. [ABSTRACT FROM AUTHOR]
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- 2023
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25. Evaluation of the effect of nanomaterials and fibers on the mechanical behavior of polymer-based nanocomposites using Box–Behnken response surface methodology.
- Author
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Niyaraki, Meysam Nouri, Mirzaei, Jaber, and Taghipoor, Hossein
- Subjects
- *
RESPONSE surfaces (Statistics) , *NANOSTRUCTURED materials , *NANOCOMPOSITE materials , *FIBERS , *TENSILE tests - Abstract
This study aims to investigate the mechanical properties of hybrid polypropylene and ethylene-propylene-monomer (EPDM)-based nanocomposites reinforced with graphene nanosheets, nanoclay, and glass fibers. The response surface methodology was the study design. An internal mixer and a hot press machine were used to prepare the samples, including 0, 1, and 2 wt% of graphene nanosheets, 0, 3, and 6 wt% of nanoclay, 0, 10, and 20 wt% of glass fiber, and 0, 5, and 10 wt% of EPDM. To determine the tensile strength, tensile tests were conducted, and tensile modulus and impact tests were run to assess the impact strength of the compounds. Scanning electron microscopy images were taken to investigate the dispersion of nanoparticles and glass fibers in the polymer. The results showed the formation of agglomeration at high percentages of graphene nanosheets and nanoclay. The addition of lower weights of graphene nanosheets improved the impact strength, tensile strength, and tensile modulus by 23, 46 and 16%, respectively. Also, the use of low weight percentages of nanoclay increased the tensile strength by 21%, and its use at high weight percentages weakened the mechanical properties. The use of glass fibers increased the impact strength and tensile modulus by 18 and 24%, respectively. Its use first increased and then decreased the tensile strength. While the incorporation of EPDM increased the impact strength by 57%, it negatively affected the tensile behavior. [ABSTRACT FROM AUTHOR]
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- 2023
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26. Mechanical and Environmental Assessment of Lathe Waste as an Addiction to Concrete Compared to the Use of Commercial Fibres.
- Author
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Los Santos-Ortega, Jorge, Fraile-García, Esteban, Ferreiro-Cabello, Javier, and González-González, Carlos
- Subjects
- *
CONCRETE waste , *MILD steel , *GLASS fibers , *FIBERS , *LATHES , *WASTE products - Abstract
The use of fibres applied to concrete in order to improve its properties is widely known. Nowadays, research is not only focused on improving mechanical properties but also on the environmental implications. The aim of this research was a mechanical and environmental comparison between different types of fibres. For this purpose, commercial fibres of three materials were used: low carbon steel, modified polyolefins, and glass fibre. In order to improve the sustainability of the sector, we also analysed and compared the performance of using a waste product, such as fibres from machining operations on lathes. For the evaluation of the mechanical properties, compression and flexural tests were carried out. The results show that the use of low carbon steel fibres increases the flexural strength by 4.8%. At the environmental level, and in particular for impact categories such as the Global Warming Potential (GWP), lathe waste fibres prove to be the most suitable. For instance, compared to glass fibres, CO2 emissions are reduced by 14.39%. This is equivalent to a total of 38 kg CO2 emissions per m3 of reinforced concrete. In addition to avoiding the consumption of 482 MJ/m3 of fossil fuels, the results of the research indicate the feasibility of using waste fibres as a substitute for commercial fibres, contributing to an improved environmental balance without losing mechanical performance. [ABSTRACT FROM AUTHOR]
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- 2023
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27. The Effect of Different Fiber Reinforcement on Bearing Capacity under Strip Foundation on the Sand Soil: An Experimental Investigation.
- Author
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Aksu Alcan, Bilge and Çelik, Semet
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PARTICLE image velocimetry ,BASALT ,REINFORCED soils ,SPECIFIC gravity ,FIBERS ,GLASS fibers ,SAND dunes - Abstract
The aim of this study is to investigate the bearing capacity-settlement behavior of strip footing settling on sand soil randomly reinforced with glass fiber, basalt fiber, macromesh fiber, and four different hybrid fiber additives in which these fibers are used together. Model tests were carried out in the laboratory on the strip footing and placed on the unreinforced and reinforced sand with different fibers. In the study, model tests were carried out on seven types of randomly reinforced soils by using glass, basalt, macrame, and mixtures of these fibers as reinforcement. In the model tests, two different fiber contents, 1% and 2%, and two different fiber lengths, 24 mm and 48 mm, were used. Tests were carried out with Dr = 30% and 50% relative density, and reinforcement depths 1B, 2B, and 3B were selected. In addition, the photographs taken during the test were analyzed with the particle image velocimetry (PIV) method and the displacements on the soil were examined. As a result of the reinforced and unreinforced model tests, the highest ultimate bearing capacity was measured as 680 kPa from the tests with Dr = 50% relative density, 48 mm length, 2% contents, and 3B depth macromesh fiber reinforced. In hybrid fibers, the highest ultimate bearing capacity was measured as 495 kPa, with Dr = 50% relative density, 48 mm length, 2% contents, and 2D depth micromesh and basalt fiber-reinforced tests. In the reinforced tests, it was concluded that the most effective fiber on bearing capacity is macromesh fiber. It can be seen that in the PIV analysis, as the fiber additive increased, the settlements made by the foundation decreased under the same pressure. It has also been observed that adding reinforcement to the soil transfers the stresses occurring in the soil to a wider area. [ABSTRACT FROM AUTHOR]
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- 2023
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28. The luminous transmittance of the quartz-glass fiber posts is superior to glass fiber posts.
- Author
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Pasmadjian, Ana C. P., Diógenes, Alysson N., Perin, Camila P., Pierdoná, Juliana, Rezende, Liliana V. M. L., Madalena, Isabela R., Baratto-Filho, Flares, and da Cunha, Leonardo F.
- Subjects
GLASS fibers ,LIGHT transmission ,EXPERIMENTAL groups ,FIBERS ,LIGHT intensity - Abstract
Copyright of Acta Odontologica Latinoamericana: AOL is the property of Acta Odontologica Latinoamericana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2023
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29. Vinylester-glass fiber composite for water pipe: Processing and effect of fiber direction.
- Author
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Naguib, Hamdy M. and Hou, Guihua
- Subjects
FIBROUS composites ,TENSILE strength ,FIBERS ,GLASS fibers - Abstract
Vinylester-glass fiber composites have a wide scale of applications, however the combination between multiple fillers can cause some disadvantages due to complicated processing, high cost and incompatibility. This paper presents a novel trial for filling commercial vinylester (VE) resin with glass fiber (GF), as one filler component, in dual directions to prepare water pipe composite using the continuous winding technique, for the first time. 10% to 25% VE-GF composites were prepared with distributing GF in axial and hoop directions. The composites were cured via in-situ polymerization; the crosslinked network is occurred between catalyst and unsaturation sites in prepolymer. All concentrations show stability in all stages of thermal degradation, compared with blank VE; the more stable composite is 25% VE-GF. GF filled in axial and hoop directions enhanced the mechanical strength of both axes. The improved concentration (20% VE-GF composite) increased axial tensile strength and hoop tensile strength respectively to 32 MPa and 51 MPa, compared with 22 MPa and 42 MPa for blank VE. Furthermore, this concentration enhanced the strengths of surface harness and pull off from 39 BHC and 2.2 MPa to 46 BHC and 5.3 MPa, respectively. The 25% VE-GF composite decreased these values, but still higher than blank. GF improved the resistance of vinylester toward water absorption in different immersion conditions, especially the 25% VE-GF composites. The filling direction doesn't affect the composite stability. As a key issue for sustainable applied polymer composites, the proposed technique presents stable and low cost composite with one filler type, as physically, thermally and mechanically stable water pipe system. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
30. High strength fibre reinforced concrete made from glass fibre and steel fibre.
- Author
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Debasree, Samanta, Sushree Manisha, and Sahoo, Kirti Kanta
- Subjects
- *
GLASS fibers , *REINFORCED concrete , *FIBERS , *FIBER-reinforced concrete , *FLEXURAL strength , *MORTAR - Abstract
The composite substance known as fiber-reinforced concrete (FRC) is created by combining cement, mortar, or concrete with the proper fibres that are discontinuous, distinct, and evenly distributed. Concrete's static and dynamic properties would be much enhanced and would function as a crack arrester with the inclusion of small, closely spaced, uniformly scattered fibres. High-performance concrete is a kind of high-strength concrete that is used in a variety of projects and contains materials with compressive strengths greater than 60 MPa. This work replaces 0.5%, 1%, and 1.5% of AR Glass fibre and corrugated steel fibre with mass cement to make concrete more durable. For varying percentages of glass fibre (GF) and steel fibre (SF). the mechanical properties, such as compressive strength, flexural strength, and split tensile strength, are assessed at different ages of 3, 7, and 28 days, respectively. In the test, 1% steel fibre exhibited the highest compressive strength compared to the other steel and glass fibre percentages. The flexural strength increases when both fibres' fibre content rises to 1.5%. The flexural strength increases to 37.7% and 49% with inclusions of 1.5% glass fibre and 0.5% steel fibre, respectively. The split tensile strength rises to 35.2% and 42.5%, respectively, with each 1% increase in glass or steel fibre content. [ABSTRACT FROM AUTHOR]
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- 2023
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- View/download PDF
31. The effect of the fibres length on flexural strength and compressive strength of reinforced foamed concrete.
- Author
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Mohammed, Aymen Ali, Lateef, Assim Mohammed, and Syamsir, Agusril
- Subjects
- *
COMPRESSIVE strength , *REINFORCED concrete , *FIBER-reinforced concrete , *FIBER cement , *FIBERS , *GLASS fibers , *FLEXURAL strength - Abstract
This experiment was carried out to determine the impact of fiber length on the mechanical properties of fiber-reinforced foamed concrete. The flexural strength was evaluated on almost 54 beam specimens with dimensions of 40 mm x 40 mm x 160 mm, as well as the compressive strength of 162 cubic specimens using two separate testing standards. Two different types of fiber were used to prepare specimens (fiberglass, steel fiber). Three fiber lengths (25 mm, 50 mm, 75 mm) were used, fiber to cement ratio was 4%, water curing conditions were adopted in this experiment. All the specimens were tested using the targeted dry density of (1160–1180 kg/m3). The different types of fiber increased the flexural capacity of the beams, but the specimens reinforced with (25 mm fiberglass) gave the highest flexural strength (2.1 Mpa). The compressive strength also had increased during different curing days, while using steel fiber (50 mm) gave the highest compressive strength (10.95 Mpa). However, 4% of (25mm) fiberglass is the optimum volume that should be included to contribute to the maximal flexural strength of foamed concrete. In addition, 4% of 50 mm steel fiber is an optimum volume that should be included to contribute to the maximal compressive strength. [ABSTRACT FROM AUTHOR]
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- 2023
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32. Effect of Fibres on Physico-Mechanical Properties of Bulk-Fill Resin Composites.
- Author
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Alshabib, Abdulrahman, Silikas, Nick, Algamaiah, Hamad, Alayad, Abdullah S., Alawaji, Rahaf, Almogbel, Shaikha, Aldosari, Ahad, and Alhotan, Abdulaziz
- Subjects
- *
GLASS fibers , *FIBERS , *SOLUBILITY , *BEND testing , *FIBROUS composites , *COMPOSITE materials , *FLEXURAL strength - Abstract
Objective: To measure the flexural strength (FS) of bulk-fill resin composites and assess their long-term water absorption and solubility properties with and without the inclusion of short glass fibres. Methods: One resin composite, everX Flow with fibres, and four commercially available bulk-fill composites without fibres, namely, PALFIQUE, Activa, SDR Plus, and Filtek Bulk Fill One, were tested. Six specimens (2 × 2 × 25 mm) were fabricated for each material and stored in water for 1 day and 30 days to measure the flexural strength using a three-point bending test. To evaluate water absorption and solubility, circular disks measuring 15 × 2 mm (n = 5) were immersed in water for 60 days, and their weights were recorded periodically. After 60 days, the specimens were dried for an additional 21 days to determine solubility. Results: Flexural strength values ranged from 101.7 to 149.1 MPa. Significant distinctions were observed among the resin composites at the onset of the study (p < 0.05). The highest FS value was identified in everX Flow, while ACT exhibited the lowest (p < 0.05). However, the flexural strength values exhibited a significant decrease with increased storage time (p < 0.05), except for ACT, which demonstrated a noteworthy increase. Concerning water absorption and solubility, ACT displayed the highest absorption, while the range of solubility varied from −0.88 to 5.8 μg/mm3. ACT also had the highest solubility, whereas everX Flow exhibited negative solubility. Significance: The addition of short fibres, along with potential differences in matrix composition, enhanced the flexural strength of everX Flow. However, the substantial reduction in flexural strength observed in everX Flow and SDR following exposure to water corroborates the manufacturers' recommendation to apply a conventional resin composite cap on these materials. [ABSTRACT FROM AUTHOR]
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- 2023
- Full Text
- View/download PDF
33. Flexural Properties of Heat-Polymerized PMMA Denture Base Resins Reinforced with Fibers with Different Characteristics.
- Author
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Yerliyurt, Kaan, Taşdelen, Taha Buğra, Eğri, Özlem, and Eğri, Sinan
- Subjects
- *
DENTAL materials , *PROSTHODONTICS , *CARBON fibers , *DENTURES , *POLYPROPYLENE fibers , *FLEXURAL strength , *FIBERS , *FLEXURAL modulus - Abstract
Polymethylmethacrylate (PMMA) has been the most-widely used denture base material in prosthetic dentistry for the last 80 years. It is still one of the best alternatives when new methods are inapplicable. Due to the lack of some physical inadequacies occurring during cyclic use and accidental situations, various reinforcement strategies such as using nanoparticles, wires, fibers, and meshes have been investigated and reported. In this study, it was aimed to conduct a comparative investigation of the effect of fiber additives with different characteristics on the flexural properties of heat-cured PMMA denture base resins. Glass fibers (GFs), polypropylene fibers (PPFs), and carbon fibers (CFs) having 3, 6, and 12 mm lengths and 0.25, 0.50, and 1.0% concentrations (v/v) were used for the reinforcement of PMMA denture base resins. The flexural properties (flexural strength, flexural modulus, and maximum deformation) were determined using a three-point bending test, and three-way ANOVA analyses with Bonferroni corrections were performed on the test results. The morphologies of the fracture surfaces were analyzed using scanning electron microscopy. All three fibers exhibited reinforcement in the flexural strength (p < 0.001) and flexural modulus (p < 0.001) regardless of their length and concentration. The group with 1.0% 12 mm CF-reinforced PMMA exhibited the greatest flexural strength (94.8 ± 8.8 MPa), and that with 1.0% 3 mm GFs displayed the lowest flexural strength (66.9 ± 10.4 MPa) among the fiber-reinforced groups. The greatest value of the flexural modulus was displayed by the 1.0% 3 mm CF-reinforced resin (3288.3 ± 402.1 MPa). Although the CF-reinforced groups exhibited better flexural properties, CFs are not favorable for use as reinforcement in practice due to the dark gray discoloration of the denture base resin. It was concluded that PPF is a promising material for the reinforcement of heat-cured PMMA denture base resins. [ABSTRACT FROM AUTHOR]
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- 2023
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34. cuPARE: parametric reconstruction of curved fibres from glass fibre-reinforced composites.
- Author
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Elberfeld, Tim, Fröhler, Bernhard, Heinzl, Christoph, Sijbers, Jan, and De Beenhouwer, Jan
- Subjects
- *
GLASS composites , *GLASS fibers , *FIBROUS composites , *COMPUTED tomography , *FIBERS - Abstract
A new framework for the parametric reconstruction of curved fibres from glass fibre-reinforced composite X-ray computed tomography data is proposed. It allows us to detect fibres in a fibre-reinforced polymer sample from a low-dose, low resolution computed tomography scan. An efficient curve representation is then used for each detected fibre, of which the parameters are estimated directly from few 2D high-resolution projection images. The framework is validated on both simulated and real data of glass fibre-reinforced polymers. The generated results demonstrate that it is robust to noise and requires less than 10 high-resolution projections to obtain reasonable fibre estimates. The method can also improve upon existing estimation frameworks relying on full 3D scans. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
35. Accelerated Zero-Stress Hydrothermal Aging of Dry E-Glass Fibers and Service Life Prediction Using Arrhenius Model.
- Author
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Sunny, John, Nazaripoor, Hadi, Palacios Moreno, Jorge, and Mertiny, Pierre
- Subjects
SERVICE life ,GLASS fibers ,FOURIER transform infrared spectroscopy ,WATER immersion ,FIBERS - Abstract
Comprehending the degradation of glass fibers is crucial for service applications involving dry and wet conditions, especially when prolonged contact with water above room temperature is present. Depending on the polymer material, both thermosetting and thermoplastic matrices can permit the ingress of moisture. Therefore, fiber reinforcements embedded in the polymer matrix may experience moisture exposure. Additionally, some structural applications use fiber devoid of any matrix (dry fibers), in which water exposure must be avoided. In all of these cases, moisture may, therefore, have a significant impact on the reinforcing elements and the rate of degradation. The present work focuses on the effects of hydrothermal aging on the mechanical durability of long E-glass fibers by immersion in water at 60 °C, 71 °C, and 82 °C. A service life forecast model was created utilizing the Arrhenius technique, and a master curve of strength variation with exposure time was created for E-glass fibers at 60 °C. Using this modeling approach, it is possible to approximate the amount of time it will take to attain a given degradation level over a specified range of temperatures. Scanning electron microscopy was used to evaluate morphological changes in fiber surfaces due to hydrothermal exposure, while Fourier transform infrared spectroscopy and mass dissolution studies were used to elucidate the mechanism of the strength loss. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
36. Mechanical properties of a resin-modified glass-ionomer cement reinforced with short-glass fiber flowable resin composites.
- Author
-
RABELO, KATHARINA and ELLAKWA, AYMAN
- Subjects
GLASS fibers ,SCANNING electron microscopes ,FLEXURAL strength ,FRACTURE toughness ,FIBERS - Abstract
Purpose: To evaluate the improvement of selected mechanical properties of a resin-modified glass-ionomer cement (RMGIC) with a discontinuous short E glass fiber flowable resin composites (GFRRC) to be used in load-bearing areas of permanent teeth. Methods: Experimental materials were prepared using two different weight proportions, 7 wt% (1.75% E glass fibers) and 25 wt% (6.25% E glass fibers) of a GFRRC into an RMGIC matrix. Flexural strength was evaluated in 0- and 24-hour hydration periods, and fracture toughness was assessed after 24 hours. The internal microstructure of fractured samples was evaluated using a scanning electron microscope. Results: The addition of 25% of GFRRC was more effective in strengthening RMGIC than the introduction of only 7% GFRRC. Hydration periods did not show any significant statistical difference (P > 0.05). SEM micrographs of experimental materials' fractured surfaces revealed pull-out and fractured fibers; the presence of the matrix attached to fibers indicates great fiber-matrix adhesion. Within the limitations of the study, the results revealed that reinforcing RMGIC with discontinuous short E glass fiber flowable resin composites (GFRRC) improved significantly the flexural strength and modestly enhanced fracture toughness. [ABSTRACT FROM AUTHOR]
- Published
- 2023
37. Improved mechanical properties of the E-glass fibres through TiO2 nanoparticle coating.
- Author
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Ahmed, Md Kawsar, Bagheri Behboud, Ali, Kurucu, Arda, Kurt Çömlekçi, Göksenin, and Ordu, Mustafa
- Subjects
- *
GLASS fibers , *NANOPARTICLES , *FIBERS , *WEIBULL distribution , *TENSILE tests - Abstract
In this work, the mechanical properties of nanoparticle-coated E-glass fibres were investigated for high-performance composites. Glass fibres were dip-coated in TiO2 solutions by varying the concentration of nanoparticles. Single-filament tensile test was performed on bare and coated fibres to understand the effects of nanoparticles and the concentration of solutions on the mechanical properties. The analysis was carried out using two-parametrical Weibull distribution, and the result indicates that the nanoparticle-coated glass fibres have a lower probability of failure than the bare fibres. The tensile strengths of the fibres were improved up to 7.31%, 11.71% and 9.67% by coating with 5%, 10% and 15% nanoparticle solutions, respectively. The nanoparticle-coating of glass fibres has positively affected the mechanical properties against fabrication-related surface defects. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
38. Ultra‐broadband and thermally stable NIR emission in Bi‐doped glasses and fibers enabled by a metal reduction strategy.
- Author
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Chen, Weiwei, Wang, Yafei, Zhang, Jing, Qiu, Baotian, Qiu, Jianrong, and Dong, Guoping
- Subjects
- *
GLASS fibers , *GERMANATE glasses , *METAL fibers , *TUNABLE lasers , *BROADBAND amplifiers , *PHOSPHATE glass , *FIBER lasers , *OPTICAL amplifiers , *FIBERS - Abstract
Bismuth (Bi)‐doped glasses with broadband near‐infrared (NIR) emission have been drawing increasing interest due to their potential applications in tunable fiber lasers and broadband optical amplifiers. Yet, the implementation of highly efficient and ultra‐broadband Bi NIR emission covering the whole telecommunication window remains a daunting challenge. Here, via a metal reduction strategy to simultaneously create a chemically reductive environment during glass melting and enhance the local network rigidity, a super broadband (FWHM ≈ 600 nm) NIR emission covering the entire telecommunications window with greatly enhanced intensity was achieved in Bi‐doped germanate glasses. More importantly, due to the excellent thermal stability, the super broadband Bi NIR emission can be well retained after the glass was drawn into an optical fiber. Furthermore, the transmission loss of 0.066 dB/cm at 1310 nm and an obvious broadband amplified spontaneous emission spectrum spanning a range of 1000–1600 nm were observed in this fiber. This work can strengthen our comprehension of the complicated Bi NIR luminescence behaviors and offer a feasible and universal way to fabricate tunable fiber lasers and broadband optical amplifiers based on Bi‐doped multicomponent glasses. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
39. Effect of Fiber Misalignment and Environmental Temperature on the Compressive Behavior of Fiber Composites.
- Author
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Drummer, Jonas, Tafesh, Felwa, and Fiedler, Bodo
- Subjects
- *
FIBROUS composites , *FIBERS , *GLASS fibers , *COMPRESSION loads , *LOW temperatures - Abstract
This experimental study investigated how defects, in particular fiber misalignment, affect the mechanical behavior of glass fiber composites (GFRP) under compressive loading. GFRP cross-plies with three different types of fiber misalignment, namely a fold, a wave, and an in-plane undulation, were fabricated using the resin transfer molding process. The compressive tests were performed at four different temperatures, in order to investigate the role of a change in the matrix properties on the strength of the composite. The experiments showed that the defects, especially at lower temperatures, had a significant impact on the mechanical properties of the composite, exceeding the proportion of the defects inside the composite. With increasing temperature, the damage mechanism changed from fiber-dominated to matrix-dominated and, in doing so, decreased the significance of fiber misalignment for the mechanical behavior. [ABSTRACT FROM AUTHOR]
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- 2023
- Full Text
- View/download PDF
40. Characterization of a New Lightweight Plaster Material with Superabsorbent Polymers and Perlite for Building Applications.
- Author
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Guijarro-Miragaya, Patricia, Ferrández, Daniel, Atanes-Sánchez, Evangelina, and Zaragoza-Benzal, Alicia
- Subjects
SUPERABSORBENT polymers ,LIGHTWEIGHT materials ,PERLITE ,POLYPROPYLENE fibers ,INDUSTRIALIZED building ,GLASS fibers ,COMPOSITE plates - Abstract
The building sector is facing the challenge of transitioning to a more industrialized construction approach and is thus promoting the development of new materials that enable the production of lighter prefabricated products with enhanced thermal performance. This study conducts the physicochemical and mechanical characterization of a new plaster material intended for application in the building sector. The plaster material developed contains potassium polyacrylate and perlite in its composition and has been reinforced with wood, glass and polypropylene fibers to improve its physical and mechanical properties. The results demonstrate that the combined incorporation of potassium polyacrylate and expanded perlite leads to a decrease in density and thermal conductivity by 10.5% and 47%, respectively, compared to traditional plasters. In addition, the incorporation of reinforcement fibers in the plaster matrix, particularly glass fiber, improves the mechanical strength of the new material. The plaster composite developed for this research offers lightweight characteristics and improves the energy efficiency of the construction systems into which it can be integrated and is designed for use in prefabricated panels and plates especially. This progress represents a step towards more efficient industrialized construction. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
41. Core–Clad High-Purity Rare-Earth-Doped Chalcogenide Glass Fibers as IR Light Sources.
- Author
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Karaksina, E. V., Shiryaev, V. S., Kotereva, T. V., Snopatin, G. E., Velmuzhov, A. P., and Sukhanov, M. V.
- Subjects
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LIGHT sources , *GLASS fibers , *CHALCOGENIDE glass , *OPTICAL fibers , *FIBERS , *RARE earth metals - Abstract
This paper presents results of investigation of core–clad optical fibers based on rare-earth-doped multicomponent chalcogenide glasses of the Ge–Ga(In)–As(Sb)–Se systems. Optical, emission, and lasing characteristics of such fibers in the IR spectral region demonstrate advantages of their materials over foreign analogues owing to low concentrations of regulated impurities. [ABSTRACT FROM AUTHOR]
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- 2023
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42. Effect of Alternating Hybridisation of Fibres on the Physico - Mechanical Behaviour of Composite Materials.
- Author
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Harb, Noura, Dilmi, Hamid, Bezzazi, Boudjema, and Hamitouche, Kahina
- Subjects
COMPOSITE materials ,FIBROUS composites ,GLASS composites ,FIBERS ,GLASS fibers ,CONSTRUCTION materials - Abstract
The performance/weight ratio of fiber reinforced polymer matrix composites makes them the material of choice for structural applications in many fields such as aerospace, aeronautics, automotive and civil engineering...etc. In polymer matrix composites, the fibers used as reinforcement are mainly synthetic fibers such as carbon and/or glass fibers. To ensure the low cost of using fiber-reinforced materials in motor vehicles, it is proposed to selectively incorporate carbon fibers to enhance glass fiber composites along the roadway, and to enhance glass fiber composites along the main load path. For this purpose, we conducted a behavioral study of hybrid epoxy thermoset polymer matrix laminates to highlight the influence of alternate hybridization of glass and carbon fibers on the physical-mechanical behavior of the materials.The results obtained show that the alternated hybridation of the fibers has a significant influence on the tensile properties; and it affected the density, hardness and flexural properties significantly. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
43. Post peak energy adsorption enhancement of glass fiber reinforced concrete with effect of graded fibers.
- Author
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Sarnala, Harish and Kasagani, Hanuma
- Subjects
- *
FIBER-reinforced concrete , *BLENDED yarn , *FIBERS , *GLASS fibers , *ADSORPTION - Abstract
Potential use of short and long fibers blends in a concrete may enhance the properties at micro and macro scale of composite. The idea of combining the short length and long length fibers with different volume proportions to form Graded Fibers. It would aid in the prevention of micro and macro cracks, enhancing concrete's pre- and post-peak performance. The effect of adding Graded Glass Fibers with varying fibre lengths and volume fractions to Glass Fiber Reinforced Concrete is investigated in this work. The tests were carried out using M40 concrete with a 0.20 percent fibre volume. It contains Single length Glass fiber in Mono Fiber form (150 µm, 6 mm length and 20 mm length fiber), short length Glass fiber in Graded form (150 µm Micro length Glass fiber+6 mm SLGF) and LLGF in Graded form (150 µm Micro length Glass fiber+6 mm SLGF+20 mm LLGF). This study found that Graded GFRC had a greater post-peak energy absorption capacity than Mono Glass Fiber Reinforced Concrete. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
44. Preparation and characterization of s-glass fiber composite with SiO2 nano particles.
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Prasad, M. Satya and Nagakalyan, S.
- Subjects
- *
COMPOSITE materials , *EPOXY resins , *PRODUCTION planning , *NANOPARTICLES , *FIBERS , *GLASS fibers , *FIBROUS composites - Abstract
S-Glass fiber composite has steady and regular epoxy resin substance with SiO2Nano particles and high grating element. This composite is layered unidirectional S-Glass fiber (0˚/90˚/0˚/90˚) stacked up into a composite at 1:1 ratio of Fiber and Matrix volumes and 0% wt. of Nano, 0.5% wt. of Nano and 1% wt. of Nano SiO2 Particles added to the Epoxy. The investigational characterization of S-Glass Fiber/Epoxy with SiO2 Nano-particles composite material and its conduct is essentially important for time of mechanical properties data for examination, plan and production of supplementary parts. Also, the experimental information can be adequately implied sharpen and have imperative repercussions for ideal blueprint of composites. [ABSTRACT FROM AUTHOR]
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- 2023
- Full Text
- View/download PDF
45. INVESTIGATING THE INFLUENCE OF PRINTING ORIENTATION AND FILAMENT DRYING ON TENSILE AND FLEXURAL STRENGTH OF FDM-PRINTED CARBON FIBER-REINFORCED POLYAMIDE COMPOSITES.
- Author
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Pandžić, Adi, Kadric, Edin, and Kolesar, Svetozar
- Subjects
- *
FIBROUS composites , *FUSED deposition modeling , *TENSILE strength , *FIBERS , *GLASS fibers - Abstract
The rapid advancement of additive manufacturing (AM), including Fused Deposition Modeling (FDM) technology, hinges significantly upon the continuous evolution of AM materials. To enhance the mechanical characteristics of these materials, filling of carbon or glass fibers has added to them. Consequently, this research delved into the analysis of a carbon fiber-filled polyamide composite. The primary objective was to investigate the impact of printing orientation and pre-printing material drying on the tensile and flexural mechanical properties. Tensile properties were analysed in accordance with ISO 527 standards, while ISO 178 standards were employed for the evaluation of flexural properties. The findings from this study showing the influence of printing orientation and pre-printing drying on both tensile and flexural properties, thereby contributing valuable insights to the field of AM materials development. [ABSTRACT FROM AUTHOR]
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- 2023
- Full Text
- View/download PDF
46. Infrared Evanescent Wave Sensing Based on a Ge 10 As 30 Se 40 Te 20 Fiber for Alcohol Detection.
- Author
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Li, Zijian, Zhao, Yongkun, You, Tianxiang, Zhu, Jihong, Xia, Mengling, Lu, Ping, Zhang, Xianghua, and Xu, Yinsheng
- Subjects
- *
ALCOHOLIC beverages , *RICE wines , *TECHNOLOGICAL innovations , *MALTOSE , *FOOD additives , *FIBERS , *GLASS fibers , *RED wines - Abstract
Infrared evanescent wave sensing based on chalcogenide fiber is an emerging technology for qualitative and quantitative analysis of most organic compounds. Here, a tapered fiber sensor made from Ge10As30Se40Te20 glass fiber was reported. The fundamental modes and intensity of evanescent waves in fibers with different diameters were simulated with COMSOL. The 30 mm length tapered fiber sensors with different waist diameters, 110, 63, and 31 μm, were fabricated for ethanol detection. The sensor with a waist diameter of 31 μm has the highest sensitivity of 0.73 a.u./% and a limit of detection (LoD) of 0.195 vol.% for ethanol. Finally, this sensor has been used to analyze alcohols, including Chinese baijiu (Chinese distilled spirits), red wine, Shaoxing wine (Chinese rice wine), Rio cocktail, and Tsingtao beer. It is shown that the ethanol concentration is consistent with the nominal alcoholicity. Moreover, other components such as CO2 and maltose can be detected in Tsingtao beer, demonstrating the feasibility of its application in detecting food additives. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
47. Short Flax Fibres and Shives as Reinforcements in Bio Composites: A Numerical and Experimental Study on the Mechanical Properties.
- Author
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Verstraete, Sofie, Buffel, Bart, Madhav, Dharmjeet, Debruyne, Stijn, and Desplentere, Frederik
- Subjects
- *
POLYLACTIC acid , *FLAX , *GLASS fibers , *MECHANICAL behavior of materials , *FIBERS , *FIBROUS composites - Abstract
The complete flax stem, which contains shives and technical fibres, has the potential to reduce the cost, energy consumption and environmental impacts of the composite production process if used directly as reinforcement in a polymer matrix. Earlier studies have utilised flax stem as reinforcement in non-bio-based and non-biodegradable matrices not completely exploiting the bio-sourced and biodegradable nature of flax. We investigated the potential of using flax stem as reinforcement in a polylactic acid (PLA) matrix to produce a lightweight, fully bio-based composite with improved mechanical properties. Furthermore, we developed a mathematical approach to predict the material stiffness of the full composite part produced by the injection moulding process, considering a three-phase micromechanical model, where the effects of local orientations are accounted. Injection moulded plates with a flax content of up to 20 V% were fabricated to study the effect of flax shives and full straw flax on the mechanical properties of the material. A 62% increase in longitudinal stiffness was obtained, resulting in a 10% higher specific stiffness, compared to a short glass fibre-reinforced reference composite. Moreover, the anisotropy ratio of the flax-reinforced composite was 21% lower, compared to the short glass fibre material. This lower anisotropy ratio is attributed to the presence of the flax shives. Considering the fibre orientation in the injection moulded plates predicted with Moldflow simulations, a high agreement between experimental and predicted stiffness data was obtained. The use of flax stems as polymer reinforcement provides an alternative to the use of short technical fibres that require intensive extraction and purification steps and are known to be cumbersome to feed to the compounder. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
48. Novel Ge-As-Se chalcogenide glass for potential high Brillouin gain coefficient of fiber.
- Author
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Qiu, Zhaoxiang, Dai, Shixun, Liu, Chengcheng, Wu, Wei, Xu, Zenghua, Wang, Yingying, and Fu, Yue
- Subjects
- *
CHALCOGENIDE glass , *GLASS fibers , *SPEED of sound , *FIBERS , *OPTICAL losses , *REFRACTIVE index - Abstract
Two series of glasses compositions, xGeSe 2 -(100-x) As 2 Se 3 (x = 15,42,63,79,94 mol%) and Ge 30 As y Se 70-y (y = 4,10,15,20 mol%), were selected for optimization with a high Brillouin gain coefficient(g B) by considering both the acousto-optic parameters and the stability of glass against crystallization. The variation in its thermal, mechanical, and material acousto-optic properties were systematically investigated. In the xGeSe 2 -(100-x) As 2 Se 3 series of glasses, the gradual increase of GeSe 2 , resulted in a significant increase in elastic modulus and longitudinal sound velocity (V L), whereas refractive index(n) and acoustic attenuation(α) decreased rapidly. The decrease in n, and the increase in V L were not conducive to the calculation of the g B. Furthermore, in the Ge 30 As y Se 70-y series of glasses, n increased to a maximum of 2.62, and α decreased to a minimum of 215 dB/cm/GHz2, with increasing As content. The highest g B = 33.77 × 10−11m/W was obtained in Ge 30 As 20 Se 50 at 1550 nm, and this value was ∼2.3 times greater than that obtained in As 2 S 3 (g B = 14.43 × 10−11m/W) and ∼1.6 times greater than that obtained in As 2 Se 3 (g B = 20.89 × 10−11m/W) chalcogenide (ChG) glass. On the basis of Ge 30 As 20 Se 50 host glass, a chalcogenide single-refractive-index fiber was drawn with a lowest optical loss of 0.7 dB/m at 6.5 μm. The above results provided an important reference for the further development of new chalcogenide glass fiber with high g B , and broadened the application in Brillouin lasers. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
49. Influence of Fiber Type on the Performance of Reinforced Concrete Beams Made of Waste Aggregates: Experimental, Numerical, and Cost Analyses.
- Author
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Karimi Pour, Arash, Shirkhani, Amir, KIRGIZ, Mehmet Serkan, and Noroozinejad Farsangi, Ehsan
- Subjects
CONCRETE beams ,COST analysis ,POLYPROPYLENE fibers ,FIBERS ,GLASS fibers ,REINFORCED concrete ,FIBER-reinforced concrete - Abstract
The structural performance of concrete structures requires swelling the bending and shear characteristics of reinforced concrete (RC) beams. The bending characteristics of RC beams consisting of waste granite aggregate (WGA), steel fibers (SF), polypropylene fibers (PF), and glass fibers (GF) are assessed in this research. Twenty-one 2,000 mm×200 mm×250 mm RC beams were cast and tested. WGA was sorted and utilized instead of natural coarse aggregates (NA), with three mass replacement fractions: 0%, 50%, and 100%. Besides, SF, PF, and GF were utilized separately at three fractions of 0%, 0.5%, and 1%. Beams were loaded under a four-point bending arrangement, and the ultimate bending resistance, deformability, stiffness and crack development were recorded and assessed. Also, an evaluation of experimental results and existing design standards in terms of maximum crack width has been carried out. Moreover, a cost-sensitivity examination has been made to analyze the effectiveness of using various fibers in terms of cost. Experiments revealed that the impact of PF on enhancing the load-bearing capability of beams with WGA was greater than that of strengthened with SF and GF. However, the impact of GF on the ultimate deformability of WGA RC beam samples was superior to that of PF and SF. PF has a greater influence on enhancing the flexural capacity of RC beams than SF; nevertheless, SF has a greater influence on deformation. The ductility and deformability of RC beams were substantially enhanced when GF was introduced in specimens made with WGA. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
50. 玻璃纤维混杂木粉增强聚丙烯 复合材料的性能.
- Author
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吴星宇, 曾 威, 石伊康, 邓金玉, and 白忠宁
- Subjects
GLASS fibers ,RHEOLOGY ,IMPACT strength ,WOOD flour ,FIBERS ,POLYPROPYLENE fibers ,FIBROUS composites - Abstract
Copyright of Plastics Science & Technology / Suliao Ke-Ji is the property of Plastics Science & Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
- View/download PDF
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