弾塑性逆解析によるクラッド板構成素材の材料パラメータ同定

概要

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The present paper proposes a novel approach for the identification of the material parameters of elasto-plasticity for individual component layers of a bimetallic sheet. This method has an advantage of using the experimental data (tensile load vs. strain curve in the uniaxial tension test and the hending moment vs. curvature diagram in the cyclic bending test) for a whole bimetallic sheet but not for individual component layers. A set of material parameters in each of two types constitutive models of cyclic plasticity (the Chahoche-Rousselier model and the Prager model) for individual component layers were identified by minimizing the difference between the experimental results and the corresponding results of numerical simulation. An optimization technique based on the iterative multipoint approximation concept was used for the identification of the material parameters.
一般社団法人日本機械学会の論文
2002-05-25