Buckling And Postbuckling Of An Imperfect Plate Subjected To The Shear Load

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The stability analysis of an imperfect plate subjected to the shear load is presented. To solve this problem, a specialized computer program based on FEM has been created. The nonlinear finite element method equations are derived from the variational principle of minimum of total potential energy. To obtain the nonlinear equilibrium paths, the Newton-Raphson iteration algorithm is used. Corresponding levels of the total potential energy are defined. Special attention is paid to the influence of imperfections on the post-critical buckling mode. Obtained results are compared with those gained using ANSYS system.

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Prof. Ing. Zdeněk Kala, Ph.D., Institute of Structural Mechanics, Faculty of Civil Engineering, Brno University of Technology, Czech Republic.

Prof. Ing. Pavel Kuklík, CSc., Department of Mechanics, Faculty of Civil Engineering, Czech Technical University in Prague, Czech Republic.

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