Stability and Strength Criteria for High Performance Steel Plates Under Egde Compression

Abstract

A Study of imperfect plate panels under compression is presented with emphasis being given on the effect on plate strength of different material and initial imperfection characteristic of high strength steel plates, in comparisonto mild steel plates. Non-linear finite element analyses of imperfect plate panels were conducted over a practical range of plate slenderness. More realistic material behavior and residual stresses were adopted in modeling of high strength steel plate panels. Ultimate strength trends for mild steel and high strength steel plates over a wide range of plate slenderness were compared which led to a simple desing aquation that would account for the observed difference in non-dimensional plate strength of imperfect high strength steel plates.