Comsol Mechanical Thermal Contact

[mehdi5165]

hi,
can somebody pls help me with the model i have appended to this post?
it is a simple thermal mechanical contact problem but i don't know what is wrong about it and why there is some errors in it after computing.
thanks

 

[gezibash]

Will you explain what do you have to do with the model?
Could you provide some diagram or something where you got the problem from?

As far as I can see you're trying to compute a multiphysics problem here. I can see you are trying to create a temperature difference and then there's also a continuous force load on one of the edges and there are three fixed constraints.

Would you explain further or post a problem statement with the corresponding diagrams.

 

[mehdi5165]

Hi gezibash,
My main problem is about the mechanical contact. it is very problematic on COMSOL.
Here, the middle part has caused the problem. Before adding this part, the contact works (however with a low boundary force).

even fixing the middle part does not solve the problem. (however i need to make it unfixed).thanks