金属系材料の多軸応力状態における応力-ひずみ関係の巨視的力学モデル : 有限のサブレイヤーから成るモデルの巨視的評価手法

概要

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To present the complex stress-strain relationships of material, Sub-layer model has been used as a kind of numerical methods for a long time. A simple analytical formulation of macroscopic Sub-layer model is proposed for presenting the Baushinger effect in which is represented to metallic material non-linear behavior in cyclic loading. By using macroscopic variables, which are derived from the Sub-layer model directly, the proposed model enable us describe cyclic plasticity simply. Macroscopic formulations are employed with several surfaces and compared with the Bounding surface model. It shows clearly that the mechanical properties of the Bounding surface model are closely connected with proposed model. The validity of macroscopic model with comparing between the numerical result of the Sub-layer model and one of proposed model is also discussed.
一般社団法人日本建築学会の論文
2006-03-20