Approximate Method of Buckling Load on Prismatic Sub-stiffened Panels

Abstract

In order to quickly calculate the buckling load on prismatic sub-stiffened panel in the preliminary design phase, an approximate method, based on some reasonable assumptions, was proposed in this paper. The stability behavior of prismatic substiffened panel with four simply-supported edges was investigated. Three major buckling modes were studied and corresponding buckling loads were obtained with the help of theories of traditional stiffened panel. ABAQUS software was utilized to establish FE models for validation, considering typical combined load-cases. The results indicated that the proposed method can be used to calculate the buckling load on sub-stiffened panel and is of high accuracy.