solids4foam/foam extend contact modelling

Tensian · July 30, 2022, 12:41

Dear foamers,

I was wondering about the options for modelling contacts in foam extend and also in solids4foam. I found the FVM approach for this very interesting...

For example, which condition will be the "equivalent" to a bonded contact (like for example in ANSYS Mechanical)?

Thanks a lot in advance

iBatistic · November 2, 2022, 10:02

Currently, solids4foam treats contact with a penalty procedure, which is fundamentally similar to the node-to-segment approach from fem. The procedure is suitable for small and large deformations and for rigid-deformable contact.

In bonded contact, bodies are glued and there is no sliding and separation. I think that this behavior can be easily achieved using GGI or AMI, so there is no separate implementation for bonded contact.

CRI_CFD · February 24, 2023, 12:42

Quote:

Originally Posted by iBatistic

Currently, solids4foam treats contact with a penalty procedure, which is fundamentally similar to the node-to-segment approach from fem. The procedure is suitable for small and large deformations and for rigid-deformable contact.

In bonded contact, bodies are glued and there is no sliding and separation. I think that this behavior can be easily achieved using GGI or AMI, so there is no separate implementation for bonded contact.

Thanks for the suggestion

July 30, 2022, 12:41	solids4foam/foam extend contact modelling	#1
Tensian Senior Member James Join Date: May 2013 Posts: 116 Rep Power: 11	Dear foamers, I was wondering about the options for modelling contacts in foam extend and also in solids4foam. I found the FVM approach for this very interesting... For example, which condition will be the "equivalent" to a bonded contact (like for example in ANSYS Mechanical)? Thanks a lot in advance

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November 2, 2022, 10:02		#2
iBatistic New Member Ivan Batistić Join Date: Sep 2022 Location: Zagreb, Croatia Posts: 4 Rep Power: 2	Currently, solids4foam treats contact with a penalty procedure, which is fundamentally similar to the node-to-segment approach from fem. The procedure is suitable for small and large deformations and for rigid-deformable contact. In bonded contact, bodies are glued and there is no sliding and separation. I think that this behavior can be easily achieved using GGI or AMI, so there is no separate implementation for bonded contact.