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- 2004-10-12
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发表于 2004-11-9 21:44:17
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来自 江苏南京
Re:请问FLAC3D里有无ANSYS类似激活单元的命令??
长见识,试了一下,挖掉了果然可以找回来。
恰好看到手册里用flac3d处理问题一章讲到对模型变化时该怎样设置应力值时有这样一段话:“First, if a null model is installed in any zones (even if it is subsequently replaced by another model), all stresses are removed from the affected zones. Second,if one model is replaced by another and the stresses should physically be zero in the new model,then an INI command must be used to reset the stresses to zero. This situation would occur if rock is mined out and replaced by backfill; the backfill would have its own stress state, unrelated to the rock it is replacing.”
意思很明显,null的模型可以随后用其他模型来替代,里面讲到了回填的例子的,回填正是要挖了再补的典型啊。 |
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