Hi, During a dynamic simulation, when the mesh starts to have collisions (mesh entering into itself), how should I manage them in FEniCS? In particular: How do I identify the nodes that enter into collision? How can I computate/apply a nodal force that correct these collisions and preserve the m…

[image] anneker: Is there a specific way in FEniCS correct interpenetration of the mesh? This is contact mechanics, and you would need to enforce the contact through your variational formulation, with either a Nitsche method or a penalty approach. Legacy dolfin @kamensky has also worked on …

How can I correct collisions and preserve mesh during dynamic simulation?

mesh

dokken February 20, 2023, 10:23am 2

You can try using the mesh.smooth command, see: How to use ALE for moving boundary problems? - #2 by dokken

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How can I correct collisions and preserve mesh during dynamic simulation?

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