G031093 自然歪を用いた有限変形の弾塑性解析に関する基礎研究 : 逆剪断の予変形後に得られる降伏曲面の形状の推定([G03-09]材料力学部門,一般セッション : 変形,ひずみ)

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  • G031093 Elasto-plastic Analysis for Finite Deformation using Natural Strain : Estimation of Shape for Yield Surface generated after Pre-deformation of Reversed Simple Shear

抄録

In the previous report, using the Natural Strain theory, the shape of yield surface and the distribution of the strain hardening modulus h around the yield surface have been examined by conducting the proportional loading tests for tension and torsion after giving the pre-deformation of uni-axial tension to the test pieces. In this paper, the shape of the yield surface, which is obtained after giving the pre-deformation of large simple shear, is estimated by examining the strain hardening modulus h in various directions in the stress space. Especially, the development of anisotropy for the shape of the yield surface is examined by changing the direction of the pre-deformation of simple shear. Moreover, the yield surface estimated by investigating the strain hardening modulus h for various directions in the stress space is compared with the shape of yield surface obtained by the conventional proof stress.

収録刊行物

  • 年次大会

    年次大会 2013 (0), _G031093-1-_G031093-5, 2013

    一般社団法人 日本機械学会

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