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【讨论】裂纹扩展

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hitpsd 该用户已被删除
发表于 2004-10-9 08:48:27 | 显示全部楼层 |阅读模式 来自 安徽合肥
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发表于 2004-10-9 09:11:14 | 显示全部楼层 来自 美国

回复: 【讨论】裂纹扩展

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If you are doing crack propagation, you must have a criterion. If it's energy type, separation energy is energy release rate by definition. If it's max stress type, you must need some kind of damping or traction reducing to release the nodes. You can calculate energy yourself. If you are doing stationary crack, easist way is to use node force on the crack tip times separation distance on the nodes behind it.  Also, J integral should be same as energy release rate in most case.
发表于 2004-10-13 10:54:02 | 显示全部楼层 来自 江苏南京

回复: 【讨论】裂纹扩展

还有其他准则什么的怎么用到这里的,如s准则之类的,俺是也做裂纹的,有的很多需请教,谢谢
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