A Theory of Multiaxial Anisotropic Viscoplasticity

[+] Author and Article Information
M. A. Eisenberg, C.-F. Yen

Department of Engineering Sciences, University of Florida, Gainesville, Fla. 32611

J. Appl. Mech 48(2), 276-284 (Jun 01, 1981) (9 pages) doi:10.1115/1.3157610 History: Received March 01, 1980; Revised August 01, 1980; Online July 21, 2009


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.

Copyright © 1981 by ASME
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