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北京石油化工学院2026年研究生招生接收调剂公告
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未名之鲲

银虫 (小有名气)

[求助] 有license的童鞋帮我看一下这个错误怎么解决,链接如下

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shuizhuan

新虫 (初入文坛)

多谢LZ,我也是这个问题
4楼2013-04-03 13:41:09
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mikefallon

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【答案】应助回帖

★ ★ ★ ★ ★ ★ ★
感谢参与,应助指数 +1
xiegangmai: 金币+2, 谢谢参与! 2013-03-10 22:37:21
未名之鲲: 金币+5 2013-03-11 08:58:15
1. Problem Description
Why do I get the error Failed to compute elastoplastic strain variables when using plasticity/concrete/soil plasticity?

2. Solution
This happens because the elastoplastic element cannot evaluate a plastic step if the current stress state is outside of the yield surface. There are two situations where you may encounter this problem:

In the first load step
The elastoplastic element fails to evaluate the consistence conditions (due to either loads, displacements, initial stress/strains), and it fails to compute the first elastic-predictor step. That is, your initial state, e.g. assumed in-situ stresses in a geomechanical problem are outside the yield surface.

During postprocessing
When results are requested at other positions than the Gauss points, the elastoplastic element actually performs a stress computation. If the gradients of the elastoplastic strains are a large within an element this computation may fail. If this happens, use the Gauss point variables such as solid.sGpx instead of general variables like solid.sx.
2楼2013-03-10 14:24:59
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baoluo123

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xiegangmai: 金币+1, 谢谢参与! 2013-04-02 23:59:03
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3楼2013-04-02 17:27:49
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