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A modelling of single crystal plasticity with backstress evolution. (English) Zbl 0876.73026

A substructure based numerical procedure which contains backstress evolution is proposed in order to depict such complex plasticity behavior of materials as isotropic hardening, kinematic hardening and crystal orientation. Two backstress models are presented, incorporated into the constitutive equations, and studied for the application of simple shear in order to examine their physical feasibility. Parametric studies are also performed for these two models. Finally, the authors compare the proposed models with earlier models of crystal plasticity.
Reviewer: G.Olenev (Tartu)

MSC:

74C99 Plastic materials, materials of stress-rate and internal-variable type
82D25 Statistical mechanics of crystals
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