Comsol Mechanical Thermal Contact

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SUMMARY

The discussion centers on troubleshooting a thermal mechanical contact model in COMSOL Multiphysics. The user, Will, encounters errors during computation, particularly related to mechanical contact in the middle part of the model. The model involves a temperature difference, a continuous force load, and three fixed constraints. Despite attempts to fix the middle part, the issues persist, indicating a need for further analysis and adjustments to the model setup.

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  • Familiarity with COMSOL Multiphysics software
  • Understanding of thermal mechanical contact modeling
  • Knowledge of multiphysics problem-solving techniques
  • Experience with boundary conditions and constraints in finite element analysis
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  • Review COMSOL documentation on thermal mechanical contact modeling
  • Learn about setting up multiphysics simulations in COMSOL
  • Investigate methods for troubleshooting finite element models in COMSOL
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Engineers, researchers, and students working with COMSOL Multiphysics, particularly those focusing on thermal mechanical simulations and troubleshooting finite element models.

mehdi5165
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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
 

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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.
 
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
 

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