ひずみ硬化および塑性領域長を考慮した弾塑性梁要素に関する一考察 : 繰返し載荷を受ける場合

概要

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It is important to analyze the collapse behavior of their designing structures and to grasp their structural properties. In such analyses, the plastic hinge method is often applied to simulate the elastoplastic behavior of each member. The method is very convenient by comparison with the FEM but can not evaluate the expansion of the plastic region under any plastic hardening as pointed out in Ref2). From the view point the new elastoplastic beam element, which enables us to solve the elastoplastic problems with hardening with only single element, has been proposed. In this paper, we formulate its element to extend cyclic loading condition and lead the two kind of yield condition. We describe the mechanical meaning of the conditions and hardening rule to each conditions. Finally we show some numerical examples to clarify the validity of this element.
社団法人日本建築学会の論文
2003-06-30