1151 自然歪を用いた有限変形の弾塑性解析 : 単純剪断における歪硬化とGの分布の関係(G03-5 材料力学(5)力学挙動1,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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The Natural Strain theory proposed in this paper has merits that the rigid body rotation can be accurately removed from the rotating angle of a line element and the additive law of strain on an identical line element can be satisfied. By using specimens that have already received large pre-deformations of simple shear, the distributions of elastic modulus G have been investigated by performing proportional loading tests of tension and torsion in an elastic region. Especially, in this report, the different deformation histories, i.e. the large simple shear in a certain direction and in the opposite direction, are chosen as the pre-deformation, and we reveal the relation between the anisotropy of elastic modulus G and the degree of strain hardening induced during these pre-deformation.
一般社団法人日本機械学会の論文
2008-08-02