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首页> 外文期刊>Journal of the Mechanics and Physics of Solids >A phenomenological plasticity model with non-normality effects representing observation in crystal plasticity
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A phenomenological plasticity model with non-normality effects representing observation in crystal plasticity

机译：具有非正态效应的现象学可塑性模型代表了晶体可塑性的观察

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摘要

An abrupt strain path change has recently been used to determine the shape of the subsequent yield surface near a current loading point. Both polycrystal plasticity calculations and experiments have shown non-normality of plastic flow, with a vertex-type response on the apparently smooth yield surface. The physical reason for this observation is carefully discussed in the paper, with particular emphasis on the fact that the prediction appears in spite of the normality rule built into each slip system of the crystal plasticity model.
机译：最近已经使用突变的应变路径变化来确定当前加载点附近的后续屈服面的形状。多晶可塑性计算和实验均显示出塑性流动的非正态性，在明显光滑的屈服面上具有顶点类型的响应。本文仔细讨论了这种观察的物理原因，特别强调了这样一个事实，即尽管晶体可塑性模型的每个滑动系统都内置了正则规则，但预测仍会出现。

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