Axial plastic collapse behavior of plates |
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Authors: | D.H. Chen S. Ozaki |
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Affiliation: | 1. Department of Mechanical Engineering, Tokyo University of Science, Kagurazaka 1-3, Shinjuku-ku, Tokyo 162-8601, Japan;2. Division of System Research, Yokohama National University, Tokiwadai 79-5, Hodogaya-ku, Yokohama 240-8501, Japan |
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Abstract: | In the present study, the collapse behavior of a plate subjected to axial compression is investigated parametrically using the finite element method. It is shown that the axial collapse of the plate, which has various hardening characteristics, is controlled by two dominant factors: the stress limitation of the material and the limitation of in-plane lateral deformation at the side edges of the plate. Then, a simplified collapse condition, which corresponds to two collapse types, is derived based on the effective width concept and the plastic theory, and the validity of the collapse condition is then verified by the comparison of numerical results obtained under various material and geometric properties. Furthermore, a method for predicting the collapse stress is proposed based on the present collapse condition. |
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Keywords: | Effective width Plastic buckling Work-hardening Collapse load FEM |
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