ひずみ制御ラチェット変形における316FR鋼のひずみ硬化

概要

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This paper is concerned with the strain hardening of 316FR steel subjected to strain-controlled ratchetting deformation, i.e., cyclic straining with maximal strain increasing at every cycle. First. by discussing isothermal and nonisothermal experiments in this type of deformation, it is shown that the isothermal stress versus strain hysteresis loops close almost completely, and that maximal plastic strain is effective for the strain hardening in the ratchetting deformation while cyclic plastic strain has a negligible influence on it. Then, it is shown that the experiments are simulated well using the nonlinear kinematic hardening model proposed by Ohno and Wang if the model is extended by taking account of the isotropic hardening expressed in terms of maximal plastic strain.
一般社団法人日本機械学会の論文
1997-05-25