Elastic Local Buckling Strength of Stiffened Plates Considering Plate/Stiffener Interaction and Lateral Pressure

摘要

A semi-analytical formula for estimating elastic local buckling strength of a continuous stiffened plate subjected to combined bi-axial thrust and lateral pressure is derived considering the effect of plate/stiffener interaction and lateral pressure. Elastic buckling analysis and elastic large deflection analysis are performed using FEM, and the results are compared with the estimates by the proposed formulae. It is revealed that the proposed formula gives an estimate of elastic buckling strength which is in good agreement with the FEM results.