Hello Peter
I am so grateful for your attention and pursuit.
the contact problem was solved by defining true shell thickness direction(bottom or top) and I have prepare an archive by ANSYS19.0 that share to you.Please tell me the objections of this file .I define all of contacts and aplly remote displacement for rigid plates.Although shell modeling decreases run time,but the run time is about 3 hours and with errors.I think by increasing the number of initial and minimum sub steps, problem can be solve.If you have a better idea,tell me please.
Best https://ufile.io/tvw95 regards
Kahroba
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