Nonlinear stability analysis of eccentrically stiffened S-FGM imperfect plates resting on elastic foundations

Abstract

This paper presents an analytical approach to investigate effects of elastic foundation and stiffeners on the nonlinear buckling behavior of eccentrically stiffened S-FGM imperfect plates subjected to mechanical loads. By using classical plate theory, Bubnov-Galerkin ’ s method and stress function, the close-form expressions of buckling loads and nonlinear post-buckling load-deflection curves of the S-FGM plates are determined.