Elastic unloading, neutral loading, and
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M. Lucchesi; P. Podio-Guidugli
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Article
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1995
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Elsevier Science
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English
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Abstraet--A plasticity index is an evolution indicator that allows one to predict, in a situation of potential plastic flow, whether plastic loading, instead of elastic unloading or neutral loading, will actually occur. It is shown in this article how a notion of plasticity index arises within the t