Abstract
In this study, dynamic response of cantilever Fiber Metal Laminate (FML) plates subjected to the impact of a large mass is studied. Aluminum (Al) sheets are placed instead of some Fiber Reinforced Plastic (FRP) layers. The effect of the Al layers on contact force and deflection of the plates is investigated by considering the interaction between the impactor and the target in the impact analysis. A two degrees-of-freedom system consisting of springs- masses and finite element modeling of the ABAQUS/Explicit software were employed to model the interaction between the impactor and the target. The results indicate that some parameters like the layer sequence, mass and velocity of the impactor, mass of the target are important factors which affect the impact response of the plates.
Highlights
Fiber Metal Laminates (FMLs) are hybrid structures consisting of different metal sheets and Fiber Reinforced Plastic (FRP) layers
The results demonstrated that the use of the metal sheets inside the FRPs improved their global behavior against the impact
It can be seen that this value changes from 0.051 for the FRP plate to 0.0269, 0.0322, 0.0377, 0.0453 or 0.0495 which corresponds to composites when the Al layers are in (1, 10), (2, 9), (3, 8), (4, 7) or (5, 6) positions respectively
Summary
Fiber Metal Laminates (FMLs) are hybrid structures consisting of different metal sheets and Fiber Reinforced Plastic (FRP) layers. They Metal Laminates (GEAML) and Carbon Fibre/Epoxyshowed that the specimen impacted by 2.35 J shows no Al Metal Laminates (CEAML) They studied the effect critical damage behavior but the specimen impacted by of repeated impacts on peak load, absorbed energy, 9.40 J shows fiber and matrix failures in CFRP layers decelerated velocity and impact time with respect to and a shear crack on the aluminum surface. They deflection at impactor load of 5.2 kg under gravity fall. Where, ρ and t are the density of the plate and some of the layers, respectively
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