A Two Surface Plasticity Model With Bounding Surface Softening

[+] Author and Article Information
C. S. White

Northeastern University, Boston, MA 02115

J. Eng. Mater. Technol 118(1), 37-42 (Jan 01, 1996) (6 pages) doi:10.1115/1.2805931 History: Received November 05, 1993; Revised March 19, 1995; Online November 27, 2007


Two surface plasticity models have been used increasingly in recent years to model not only uniaxial, cyclic plasticity but also multiaxial and nonproportional histories. A two surface model is presented here which predicts the increased hardening due to out-of-phase cycling in a natural way. It includes a mechanism by which the bounding surface contracts when the yield surface is not in contact. This provides a mechanism that is useful for modeling cycling behavior. Predictions of the model with experiments at moderate strain are presented.

Copyright © 1996 by The American Society of Mechanical Engineers
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