In FE some elements are overlapping. I read a paper says thst such overlapping causes higher in plane stiffness only. I wonder does the impact on accuracy of solutions very big?
Ahmed H. Abdulaziz Hi!
Make two simple exact models, one without overlapping and one with overlapping elements. Compare the results :-)
Thank you Arsalan Marghoub for your thought.
In fact, I created zero thickness model and I've added thickness to shell elements. However, these elements are overlapping. Further, I read a paper says that stiffness matrix at the intersection zones is quite big.
Do you recommend something to do to eliminate this overlapping so that I can create your proposed exact model?
In my opinion, overlapping elements can dramatically change the accuracy of the results. Mesh distribution has to be as much as regular to obtain accurate results.
Sedat Kömürcü Thank you.
Would you please, tell me what do you recommend to eliminate this problem?
Dear Ahmed H. Abdulaziz,
You should avoid such overlaps. I don't know which software you use to model and solve, but working with a variety of FEM/FEA platforms, I could't solve whenever this happened!
you need to play with your element size and type to make sure this issue is avoided!
Sometimes when you have several materials and contact surfaces this can be ignored (depending on the contact parameters of course!) but seems that you have only one material here and this is a meshing issue.
Best,
Arsalan
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