非线性分析时经常出现<BR><BR>igid body motion can also occur when net section yielding has<BR>occurred resulting in large displacements for small increments of load<BR>or when buckling has occurred. You can plot the time history curve<BR>for node 6359 in the UY direction to check for stiffness (slope of the<BR>curve) approaching zero.
<br>按了proceed后就可以继续计算了。<BR>这是这么原因造成的？对结果有影响吗？怎么避免啊？
发表于 2005-9-22 21:15
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