2. Accounting for work hardening
Work hardening of the material is induced by the multiplication within the material of dislocations generated by the stress field to accommodate plastic deformation; these dislocations modify the yield boundary—that is, the stress states that allow plastic deformation to continue.
Under tension, this leads, at least initially, to an increase in the plastic yield stress. We will specify the two main classes of models used to describe this behavior and generalize Equation (25) from the document
2.1 Isotropic Work Hardening
Since the work-hardening state of the material evolves solely as a result of its plastic deformation,...
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Accounting for work hardening
Plastic Anisotropy
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