Fabrication of high-stiffness fiber-metal laminates and study of their behavior under low-velocity impact loadings
作者： Dong-Woo Lee , Byung-Jin Park , Sang-Yoon Park , Chi-Hoon Choi , Jung-Il Song
DOI: 10.1016/J.COMPSTRUCT.2018.01.044
关键词: Molding (process) 、 Cracking 、 Fiber 、 Fabrication 、 Shear (sheet metal) 、 Stiffness 、 Fracture mechanics 、 Ultimate tensile strength 、 Composite material 、 Materials science
摘要: 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, glass prepreg through autoclave molding. The mechanical was evaluated performing tensile, compressive, in-plane shear, low-velocity tests. Drop-weight tests conducted to induce cracking FMLs, crack initiation along with propagation different laminate sequences ([0/0], [0/90], [0/90/0], [90/0/90] [0/90/90/0]) also studied. results show that have higher strength stiffness than conventional FMLs. Their strengths increased, weights decreased simultaneously. absorption energy proportional length induced impact. Moreover, it found fiber orientation mainly affected direction in investigation facilitates design lightweight for automotive parts.
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