Buckling Analysis of Stiffened Plate with Local Imperfections under In-Plane Bending

Abstract:

Elastic buckling of stiffened plate with local imperfections were presented in this paper. As its difficult to analysis buckling character of the stiffened plate with local imperfections by using elastic plate theory, this paper used finite element method (FEM) to model 30 different cases of local imperfections in stiffened plate, and analysed how the size, depth and direction of local imperfections affect the critical buckling coefficient of the stiffened plate. Results shown that, the size, depth and direction of local imperfections are have significant impact to the buckling behavior of stiffened plate, the largest decrease of critical buckling coefficient due to the local imperfection reaches 30% in this paper, and the critical buckling coefficient of stiffened plate with smaller stiffness ratio is more susceptible to the local imperfections.

• Periodical: Applied Mechanics and Materials (Volumes 351-352)
• Pages: 290-296
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.351-352.290
• Online since: August 2013
• Authors: Qi Feng Chen, Mu Yu Liu
• Keywords: Critical Buckling Coefficient, Local Imperfection, Longitudinal Stiffener, Plate Buckling

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