軸圧縮を受ける板の崩壊挙動に関する数値解析的検討

概要

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In this paper, the collapse behavior of a thin-plate subjected to axial compression is studied by using the finite element method. It is revealed that the collapse of plate is induced by two dominant factors. First factor is the limitation of the stress of material, and second one is the limitation of in-plane deformation at the side edge of plate. Then, the judgment method, which becomes a dominant factor either the limitation of the stress or the in-plane deformation, is found by using the critical plastic strain. Further, an approximation prediction method of the collapse stress for the collapse mode of in-plane deformation is proposed, and its validity is verified comparing with the numerical results by FEM under various conditions, such as material property, geometric and boundary conditions.
社団法人日本機械学会の論文
2008-01-25