Inelastic post buckling behavior of very short column

Abstract

Abstract The main objective of this paper is to discuss and explain the post‐yielding bucking behavior of very short columns using equivalent modulus theory with emphasis on the behavior of columns made of ideal elastic‐plastic material. In general, results obtained from the proposed method are between those calculated from tangent modulus theory and double modulus theory. When the slenderness ratio l/r approaches to zero, the critical load increases sharply because of strain hardening effects. The results are predicted by the proposed method and are in a close agreement with the experimental results. For illustration and future reference purposes, column failure can be classified into 5 failure modes.