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874 results on '"Velmurugan, R."'

5. Numerical Analysis of Specimen Size Influence on Dynamic Behaviour of Al 2014 Alloy Using SHPB Technique

Author

Gara, Navya, Velmurugan, R., Jayaganthan, R., Ghosh, Arindam, Series Editor, Chua, Daniel, Series Editor, de Souza, Flavio Leandro, Series Editor, Aktas, Oral Cenk, Series Editor, Han, Yafang, Series Editor, Gong, Jianghong, Series Editor, Jawaid, Mohammad, Series Editor, Velmurugan, R., editor, Balaganesan, G., editor, Kakur, Naresh, editor, and Kanny, Krishnan, editor

Published
2024
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6. Analysis of High-Speed Impact Behavior of Al 2024 Alloy Using Machine Learning Techniques

Author

Siri, S., Gara, Navya, Velmurugan, R., Jayaganthan, R., Ghosh, Arindam, Series Editor, Chua, Daniel, Series Editor, de Souza, Flavio Leandro, Series Editor, Aktas, Oral Cenk, Series Editor, Han, Yafang, Series Editor, Gong, Jianghong, Series Editor, Jawaid, Mohammad, Series Editor, Velmurugan, R., editor, Balaganesan, G., editor, Kakur, Naresh, editor, and Kanny, Krishnan, editor

Published
2024
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7. Effect of Hybrid Fibers on the Mechanical Properties and Impact Behavior of Concrete Panels

Author

Ashok Kumar Reddy, Beri, Ganesan, Partheepan, Chinnapandi, M., Velmurugan, R., Ghosh, Arindam, Series Editor, Chua, Daniel, Series Editor, de Souza, Flavio Leandro, Series Editor, Aktas, Oral Cenk, Series Editor, Han, Yafang, Series Editor, Gong, Jianghong, Series Editor, Jawaid, Mohammad, Series Editor, Velmurugan, R., editor, Balaganesan, G., editor, Kakur, Naresh, editor, and Kanny, Krishnan, editor

Published
2024
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8. A Study on Tensile Strength Attributes of Jute Fiber-Reinforced Polyester Composite

Author

Keerthi Gowda, B. S., Megha, B. E., Prasad, G. L. Easwara, Abhishek, R., Velmurugan, R., Ghosh, Arindam, Series Editor, Chua, Daniel, Series Editor, de Souza, Flavio Leandro, Series Editor, Aktas, Oral Cenk, Series Editor, Han, Yafang, Series Editor, Gong, Jianghong, Series Editor, Jawaid, Mohammad, Series Editor, Velmurugan, R., editor, Balaganesan, G., editor, Kakur, Naresh, editor, and Kanny, Krishnan, editor

Published
2024
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9. Effect of Gamma Irradiation on Mechanical and Thermal Properties of 3D-Printed PLAs

Author

Yogeshwaran, V., Chandradass, J., Chinnapandi, M., Velmurugan, R., Ghosh, Arindam, Series Editor, Chua, Daniel, Series Editor, de Souza, Flavio Leandro, Series Editor, Aktas, Oral Cenk, Series Editor, Han, Yafang, Series Editor, Gong, Jianghong, Series Editor, Jawaid, Mohammad, Series Editor, Velmurugan, R., editor, Balaganesan, G., editor, Kakur, Naresh, editor, and Kanny, Krishnan, editor

Published
2024
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25. Eigen value analysis of composite hollow shafts using modified EMBT formulation considering the shear deformation along the thickness direction

Author

Pavani Udatha, A.S. Sekhar, and Velmurugan R

Subjects
Composite hollow shafts, Bending natural frequency, Modified EMBT formulation, Thickness effect, Military Science
Abstract

Composite hollow shafts are used in power transmission applications due to their high specific stiffness and high specific strength. The dynamic characteristics of these shafts are important for transmission applications. Dynamic modelling of these shafts is generally carried out using Equivalent Modulus Beam Theory (EMBT) and Layerwise Beam Theory (LBT) formulations. The EMBT formulation is modified by considering stacking sequence, shear normal coupling, bending twisting coupling and bending stretching coupling. It is observed that modified EMBT formulation is underestimating the shafts stiffness at lower length/mean diameter (l/dm) ratios. In the present work, a new formulation is developed by adding shear deformation along the thickness direction to the existing modified EMBT formulation. The variation of shear deformation along the thickness direction is found using different shear deformation theories, i.e., first-order shear deformation theory (FSDBT), parabolic shear deformation theory (PSDBT), trigonometric shear deformation theory (TSDBT), and hyperbolic shear deformation theory (HSDBT). The analysis is performed at l/dm ratios of 5, 10, 15, 20, 25, 30, 35, and 40 for carbon/epoxy composites, E-glass/epoxy composites, and boron/epoxy composite shafts. The results show that new formulation has improved the bending natural frequency of the composite shafts for l/dm

Published
2023
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33. Comparative Study of Ballistic Performance Parameter of Kevlar/Epoxy Composite Laminate

Author

Balaji Shunmugam, A., Velmurugan, R., Cavas-Martínez, Francisco, Series Editor, Chaari, Fakher, Series Editor, di Mare, Francesca, Series Editor, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Series Editor, Ivanov, Vitalii, Series Editor, Kwon, Young W., Series Editor, Trojanowska, Justyna, Series Editor, Tadepalli, Tezeswi, editor, and Narayanamurthy, Vijayabaskar, editor

Published
2022
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36. High-Velocity Impact Studies on Dyneema Fabric with and without STF-Experimental and Theoretical Studies

Author

Chinnapandi, M., Katiyar, Ajay, Nandi, Tandra, Velmurugan, R., Cavas-Martínez, Francisco, Series Editor, Chaari, Fakher, Series Editor, di Mare, Francesca, Series Editor, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Series Editor, Ivanov, Vitalii, Series Editor, Kwon, Young W., Series Editor, Trojanowska, Justyna, Series Editor, Krishnapillai, Shankar, editor, R., Velmurugan, editor, and Ha, Sung Kyu, editor

Published
2022
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37. Effect of Annealing Time and Temperature on Dynamic Mechanical Properties of FDM Printed PLA

Author

Niranjan, Y. C., Krishnapillai, Shankar, Velmurugan, R., Ha, Sung Kyu, Cavas-Martínez, Francisco, Series Editor, Chaari, Fakher, Series Editor, di Mare, Francesca, Series Editor, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Series Editor, Ivanov, Vitalii, Series Editor, Kwon, Young W., Series Editor, Trojanowska, Justyna, Series Editor, Krishnapillai, Shankar, editor, R., Velmurugan, editor, and Ha, Sung Kyu, editor

Published
2022
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38. Effect of Heating Rate on the Thermomechanical Cycle of Shape Memory Polymers

Author

Boomurugan, R., Shahi, Kartikey, Gopal, K. V. N., Mohan, Ranjit, Velmurugan, R., Cavas-Martínez, Francisco, Series Editor, Chaari, Fakher, Series Editor, di Mare, Francesca, Series Editor, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Series Editor, Ivanov, Vitalii, Series Editor, Kwon, Young W., Series Editor, Trojanowska, Justyna, Series Editor, Krishnapillai, Shankar, editor, R., Velmurugan, editor, and Ha, Sung Kyu, editor

Published
2022
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39. Analysis of Drill Tool Wear Using Acoustic Emission Signals Based on IBS Technique for CFRP Laminates

Author

Rishikesan, V., Arunachalam, N., Velmurugan, R., Vijayaraghavan, L., Cavas-Martínez, Francisco, Series Editor, Chaari, Fakher, Series Editor, di Mare, Francesca, Series Editor, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Series Editor, Ivanov, Vitalii, Series Editor, Kwon, Young W., Series Editor, Trojanowska, Justyna, Series Editor, Krishnapillai, Shankar, editor, R., Velmurugan, editor, and Ha, Sung Kyu, editor

Published
2022
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48. Characteristics of bio‐sandwich composites with montmorillonite nanoclay under quasi‐static punch loading.

Author

Sharma, Ankush P., Velmurugan, R., Shukla, S., Bhandari, T., Guha, M., and Mukherjee, S.

Abstract

Highlights The bio‐sandwich composites are lightweight, economical, recyclable, and easily obtainable. Sandwich panels comprising glass fiber/epoxy face sheets and hemp fiber/epoxy core with varying fiber orientations, thickness, and montmorillonite nanoclay are prepared by stirring the epoxy/clay mixture to have uniform dispersion followed by compression molding. The sandwich and monolithic composites are loaded under quasi‐static punch shear. The sandwich panel with 3 wt.% nanoclay shows optimum quasi‐static tensile modulus and strength than the neat panel. Energy absorption, and specific energy absorption of sandwich panels G0/H(0)5/G0‐0%, G0/H(0)10/G0‐0%, G0/H(0)15/G0‐0% are 2%, 76%, 111%, and 28%, 132%, 183% higher than same weight glass/epoxy composites G(0)5‐0%, G(0)8‐0%, G(0)10‐0%. Energy absorption and specific energy absorption of panels G0/H(0)3/G0‐3%, G0/H(0)7/G0‐3%, G0/H(0)9/G0‐3% are similar, 25%, 24%, and 18%, 55%, 57% higher than same thickness composites G(0)5‐0%, G(0)8‐0%, G(0)10‐0%. The energy absorption of sandwich panel G0/90/H(0)15/G90/0‐0% is 49% lower than same weight composite G0/90/(0)9/90/0‐0%. Similar behavior is observed for panels with ±45° face sheets, 0° core, and 0°/90° face sheets, ±45° core compared to composites. Therefore, sandwich panels with 0° face sheets and core outperform composites and can replace them in structural applications in automotive. Particularly, panels show greater improvement over same‐weight composites than same‐thickness ones. Energy absorption of sandwich panels having 0° and ±45° cores is comparable while it is higher than a panel with 0°/90° core, each of 0°/90° face sheets. This is observed for monolithic composites as well. The quasi‐static indentation response of bio‐sandwich composites is examined. Bio‐sandwich composites outperform synthetic composites, each of the same weight. Bio‐sandwich panels with 3 wt. % nanoclay perform better than the same thickness synthetic composites. The behavior of sandwich and monolithic composites varies with fiber orientations. [ABSTRACT FROM AUTHOR]

Published
2024
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50. Comparative Study of Nano and Micro Fillers in EPDM/Silicone Rubber for Outdoor Insulator Application

Author

Bhavya, S., Mahesh, Unnam, Velmurugan, R., Sarathi, R., Cavas-Martínez, Francisco, Series Editor, Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Series Editor, Ivanov, Vitalii, Series Editor, Kwon, Young W., Series Editor, Trojanowska, Justyna, Series Editor, Pandey, K.M., editor, Misra, R.D., editor, Patowari, P.K., editor, and Dixit, U.S., editor

Published
2021
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