Fiber-metal laminates (FMLs) possess huge
potential in mass-reduction strategy of automotive industry. In order to
understand behavior of FMLs as they undergo stamp forming processes, finite
element analyses of surface strain evolutions have been carried out. The
simulations provide strains at locations within the layers of an FML, allowing
better understanding of forming behavior
of the composite layer and its influence on the metal layers. Finite element analyses
were conducted on two aluminum-based FMLs with different fiber-reinforced
composites and benchmarked against monolithic aluminum alloy. The simulation
results indicated that high stiffness of the reinforcement constrains flow of
the matrix in the composite layer, which can be attributed to the
distinguishing behavior of the FMLs compared to the monolithic aluminum alloy.
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