A computational study on residual strength of sandwich composite panel

摘要

The present study investigates numerically the compressive residual strength of indented sandwich composite panel.The composite is made of carbon fiber reinforced plastic (CFRP) face sheets and aluminum honeycomb core.The sandwich is loaded under quasi-static condition and along out-of-plane direction.A commercial finite element analysis software ABAQUS is used.The results show that the indented composite retains significant amount of strength after indentation.And,the post-indentation strength of the composite is about 65％ its pre-indentation strength under compression.