Development of Plasticity and Ductile Fracture Models Involving Three Stress Invariants
Published: Jan 1, 2012
Abstract
It has been shown that the plastic response
of many materials, including some metallic alloys, depends on the
stress state. Based on plasticity analysis of three metal alloys, a
series of new plasticity models with stress state effect is
proposed. The effect of stress state on plasticity and the general
forms of the yield function and flow potential for isotropic
materials are assumed to be functions of the first invariant of the
stress tensor...
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