Elasto-plastic dynamic buckling and postbuckling of square plates under solid-fluid slamming

The elasto- plastic dynamic buckling and postbuckling phenomena of square plates subjected to in-plane solid-fluid slamming are investigated. According to the plate' s response, the critical criteria for dynamic buckling, dynamic plasticity and plastic collapse are defined, and the corresponding critical impulses are presented. Meanwhile, dynamic buckling modes and collapse models are observed. The effects of different boundary conditions and loading histories on the properties of buckling and postbuckling are discussed.