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Structural & Thermal

Structural & Thermal

How to reduce contact penetration?

    • FAQFAQ
      Participant

      The contact penetration, the solver assumes that the solution is converged when all the convergence criteria are met and when the penetration is within the tolerance (default is 10% of underlying element size). So, here are a couple of things that one can try: – Refine the mesh (especially on the contact side) – increase the contact normal stiffness (this may cause convergence issues, I’d say use 0.1 if the default does not work). – decrease the contact penetration tolerance (you can find this under the contact details, set it to a factor of 0.05 to reduce the tolerance to 5%) – Use normal Lagrange formulation (this will result in the least penetration but it can be a bit expensive).