A theory of anisotropic viscoplasticity is developed. It is compared with and shown to reduce to existing theories under appropriate restrictions. The theory accommodates anisotropic hardening laws which, by means of Lagrangian mappings in stress space, incorporate experimentally observed yield surface distortion as well as kinematic and isotropic flow-induced changes. The theory is applied to the prediction of flow surfaces in tension-torsion space.
Issue Section:
Research Papers
Topics:
Anisotropy,
Viscoplasticity,
Flow (Dynamics),
Hardening,
Kinematics,
Stress,
Tension,
Torsion
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Copyright © 1981
by ASME
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