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Fabrication of high-stiffness fiber-metal laminates and study of their behavior under low-velocity impact loadings
- Source :
- Composite Structures. 189:61-69
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- This study investigates the impact behavior of fiber-metal laminates (FMLs) (Carbon FMLs and Glass FMLs), which were fabricated by using high-stiffness steel, carbon prepreg, and glass prepreg through autoclave molding. The mechanical behavior of the FMLs was evaluated by performing tensile, compressive, in-plane shear, and low-velocity impact tests. Drop-weight impact tests were conducted to induce cracking of the FMLs, and the crack initiation along with crack propagation behavior of the different laminate sequences ([0/0], [0/90], [0/90/0], [90/0/90] and [0/90/90/0]) were also studied. The results show that the fabricated FMLs have higher strength and stiffness than conventional FMLs. Their impact strengths increased, and weights decreased simultaneously. The absorption energy was proportional to the crack length that was induced by the low-velocity impact. Moreover, it was found that the fiber orientation mainly affected the direction of crack propagation in the FMLs. This investigation facilitates the design of high-stiffness and lightweight FMLs for automotive parts.
- Subjects :
- Fabrication
Materials science
Stiffness
Fracture mechanics
02 engineering and technology
Molding (process)
021001 nanoscience & nanotechnology
Shear (sheet metal)
Cracking
020303 mechanical engineering & transports
0203 mechanical engineering
Ultimate tensile strength
Ceramics and Composites
medicine
Fiber
medicine.symptom
Composite material
0210 nano-technology
Civil and Structural Engineering
Subjects
Details
- ISSN :
- 02638223
- Volume :
- 189
- Database :
- OpenAIRE
- Journal :
- Composite Structures
- Accession number :
- edsair.doi...........42aa24426a46da39bbc20e598c50735b
- Full Text :
- https://doi.org/10.1016/j.compstruct.2018.01.044