In this paper, a nonlocal theory based upon crystalline plasticity is used in case of a dislocation cell structure induced during plastic straining and represented by a two-phase material. By describing convective dislocation motion (which appears to be a basic feature of hardening) and storage mechanisms, under some simplifying assumptions, numerical simulations exhibit significant effects on the intragranular heterogeneization, as well as on global results like the Bauschinger effect.
Issue Section:Research Papers
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by The American Society of Mechanical Engineers