Dynamic buckling of laminated composite curved panels subjected to in-plane compression

Abstract

This paper deals with dynamic buckling of laminated composite curved panels subjected to in-plane dynamic compressive loads. Results from the available literature are used to validate the static buckling load of curved panels, and the dynamic buckling loads of the same panel are predicted using finite element software ABAQUS/Explicit. Volmir’s criterion is used to find the dynamic buckling load. Dynamic load of various magnitudes in the form of pulse load is applied on the panel for various duration. The effect of aspect ratio and radius of curvature are studied. It is observed that smaller loads require longer duration of loading and vice versa for dynamic buckling to occur. The dynamic buckling load is observed to be lesser than static buckling load for longer duration of loading which is an important aspect to be considered in designing.