Investigation of the Compressive Behaviour of an Expanded Cellular Core

Abstract

The compressive behaviour of an expanded periodic cellular core, developed at Transilvania University of Braşov, is investigated by finite element analysis using a measured material response of an annealed stainless steel type 304. The ways in which the deformations modes in compressive loading are influenced by the geometrical parameters of the core are identified and discussed in this paper. The strength and normal compressive modulus of the core are evaluated in terms of the topology of the cellular structure. The values of geometrical parameters of the expanded cellular structure that offer the best compressive strength are identified.