热应力分析不收敛
分析焊接残余热应力，用生死单元来模拟焊缝的填充。可是分析不收敛，系统显示以下错误：One or more elements have become highly distorted.Excessive
distortion of elements is usually a symptom indicating the need for
corrective action elsewhere.Try incrementing the load more slowly
(increase the number of substeps or decrease the time step size).You
may need to improve your mesh to obtain elements with better aspect
ratios.Also consider the behavior of materials, contact pairs,
and/or constraint equations.If this message appears in the first
iteration of first substep, be sure to perform element shape checking.
大变形，牛顿拉普森选项，线性搜索，小步长，斜坡载荷，约束非活动节点自由度，等等我能想到的所有的办法都用上了，shape checking也没什么错误。可是还是不收敛。各位给个建议吧。
谢谢 不是还有别的求解器吗，换个试试
看上面的提示还要考虑接触，不知道你的需不需要 多谢，不用接触。用的是号称最强劲的ICCG 我也遇到这个问题，不知道lz解决了没有呢？ 我想分析焊接热应力分布情况,还有距离加温点一段距离的温度?
怎么求解?
页:
[1]