Dear all,
I'm trying to modeling an 3d Mode I delamination problem using VCCT method. C3DR8 element is used thereby. Every time after submitting the job it warned me with that "Solver problem: zero pivot...". I assume it may be caused by over-constraint, but I can't find where I exactly goes wrong. I've uploaded the .inp file. Could anyone can give me a hand? Thanks a lot.
Leo
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