Contact pairs in ANSYS

[AminCE]

Hi ,I am doing a finite element analyses using ANSYS Workbench 15.0.
The model contain contact elements type bonded, the later were combined with CZM. When I solve the model the following warning appears:

WARNING: ' ANSYS has found the contact pairs have similar mesh patterns which can cause over-constraint. ANSYS will deactivate the current pair and keep its companion pair.

I am facing a convergence problem due to contacts and I am thinking that this may be the solution of the convergence problem. I would like to know the meaning of this warning. waiting for your response, Thanks.

 

[scheah]

Hopefully this thread will help: link.


Kind regards,
Jason

 

[AminCE]

Thank you Jason for your replying, It's helped me to understand many things, but I still didn't understand it rightly

 

[JGard1985]

Do you have duplicate contact pairs? e.g. are the two meshes bonded and then also combined with CZM?

Jeff
Pipe Stress Analysis
Finite Element Analysis

http://www.xceed-eng.com

 

[AminCE]

Yes, I using contact type bonded + for each contact pairs I added a CZM values

 

[goeasyon]

It seems that you are applying multiple contact pairs, you can suppress the contact pair objects one by one and figure out which pairs cause that warning. I don't know what does your CZM stand for, you may temporarily remove the CZM values and see if the warning goes away.

https://welsim.com

 

[AminCE]

@goeasyon, thank you for your replying. the CZM is used to include the separation between the elements. can you explain more about applying multiple contact pairs.

 

[AminCE]

Any one can help me understand the above warning