F. Ashenai Ghasemi, Gh. Payeganeh, and K. Malekzadehfard (Iran)
Fiber metal laminate (FML), Fiber reinforced plastic(FRP), Impact, Composite.
The literature presents the dynamic behavior of fiber metal laminates (FMLs) under low-velocity impact. The aluminum and steel layers are placed instead of some fiber reinforced plastic (FRP) plies. The FRPs are made of glass or carbon fibers and epoxy resin. The effect of some material parameters on contact force history, deflection, in-plane strains and stresses, and absorbed energy (AE) of impact in the structure is studied. The first-order shear deformation theory (FSDT) is used to develop the governing equations of the hybrid plate. A two degrees-of-freedom system, consisting of springs masses, is employed to model the interaction between the impactor and plate. The impact analysis of the hybrid plate is done with the help of the Choi’s linearized Hertzian contact model. The results indicated that layer sequence of metal layers, material type of metal layers and composite medium, and E11/E22 ratio of composite medium are important factors affecting the dynamic behavior of the FMLs under low-velocity impact. The results that are presented here are not reported in the published literature.
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