The effect of impact damage on the compressive behaviour of composite sandwich panels with a foam core is experimentally investigated. The considered impact damage is in a form of crushed core accompanied by a residual dent in the face sheet. The impact damage is shown to cause a significant reduction in compressive strength. The panels exhibit local buckling failure provoked by the residual dent in the face sheet. A finite element model for the analysis of local buckling failure is presented. The analysis demonstrates a good agreement with experimental results.
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