A Numerical Calculation of Cyclic Deformation Accompanied by Strain Range Variation and Subsequent to Tensile Deformation in Terms of Dislocation Dynamics in Copper

概要

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The cyclic stress-strain response of copper under conditions where tensile deformation was followed by cyclic deformation and change in strain range occurred during cyclic deformation was estimated, extending the analysis proposed by the authors in their previous paper. At that time it was assumed that copper had inherent dislocation density in the controlled strain range at the stable stage in the cyclic deformation process, independent of the strain history to which copper was subjected. The cyclic softening occurring in cyclically deformed copper following the tensile deformation was successfully described through the present analysis. Moreover, the cyclic softening and hardening behavior induced by the change in strain range controlled in the cyclic deformation test was also satisfactorily calculated using the proposed method.
一般社団法人日本機械学会の論文
1993-07-15