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Unwanted Initial Penetration in touching solids

Unwanted Initial Penetration in touching solids

Unwanted Initial Penetration in touching solids

(OP)
Hello,
I am having huge unwanted stresses in two solid that are only touching each other. The stresses exist from second time step afterward.
With enabling ignore initial penetration(DYCONIGNORE), I was not expecting this behaviour.
I have already checked the model and there is no penetration, and meshing shape is not in a way to cause any penetration.
I also tried enabling "stress free init cont" in contact table for specific contacting solids, But this didn't change any thing either.
I am considering making a small gap between solids as a last resort. Does any body have any clues why is this happening and how can I workaround this?

RE: Unwanted Initial Penetration in touching solids

(OP)
I finally figured it out,
The touching solids had different mesh types and probably that was the cause of wrong results.

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