Stress–strain measures used in the ANSYS package to solve elastoplastic problems at finite strains

被引：1

作者：

Ovchinnikova N.V. ^{[1
]}

机构：

[1] Moscow State University, Faculty of Mechanics and Mathematics, Leninskie Gory, Moscow

来源：

Moscow University Mechanics Bulletin | 2017年 / 72卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

Stress tensor - Elastoplasticity - Olefins;

D O I：

10.3103/S0027133017050028

中图分类号：

学科分类号：

摘要：

It is shown that the Dienes (or the Green–McInnis–Naghdi) derivative is used in the ANSYS package rather than the Jaumann derivative as an objective derivative for the Cauchy stress tensor when solving elastoplastic problems, although the usage of the Jaumann derivative is stated in the ANSYS theory reference manual. In this manual it is also stated that, for these problems, the strain tensor is the Hencky logarithmic strain tensor; however, in reality, this strain tensor is the right nonholonomic strain tensor such that the left nonholonomic strain tensor associated with the right one is generated by the Dienes derivative. © 2017, Allerton Press, Inc.

引用

页码：108 / 112

页数：4

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