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Incremental evolution of induced anisotropy
Authors:M. Boucher  J.P. Cordebois  
Affiliation:

* Laboratoire de Mécanique et Technologie E.N.S. Cachan/C.N.R.S./Université Paris 6, 61 avenue de Président Wilson 94235, Cachan cedex, France

Conservatoire National des Arts et Métiers 292 rue Saint Martin 75141, Paris cedex 03, France

Abstract:The aim of this article is to define a model that describes the evolution of the yield surface during plasticity. We propose a modelisation that is completely different from the classical approach as far as conception is concerned. It consists of describing the yield surface evolution with the help of velocity. The yield function is not directly known but is obtained by integrating a differential law starting from an initial surface. A very simple evolution law is used; the complexity of the induced anisotropy is obtained by incremental accumulation.
Keywords:
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