Impact Collapse Analysis of Thin-Walled Structure Using Distinct Element Method

Abstract

In the present paper, an alternative numerical approach based on distinct element method (DEM) for the impact collapse analysis of thin-walled structures was proposed. Starting from the equilibrium equation for the thin plate bending, new element for bending and twisting has been introduced using single layer element in DEM. Furthermore, non-linear element taking into account the plastic deformation has been applied in the present method. The validity of the present numerical approach was considered and inspected through some numerical demonstrations for the impact collapse and plastic buckling problems of thin-walled structure.