Nonlinear finite element analysis was used to simulate compression tests on sandwich composites containing debonded face sheets. The core was modeled as an elastic-perfactly-plastic material, the the face-sheet as elastic isotrop0ic. The effects of core plasticity, face-sheet and core thickness, and debond length on the maaximum load the beam can carry were studied. The results indicate that the core plasticity is an important factor that determines the maximum load.
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