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Ansys Learning Forum › Forums › Discuss Simulation › General Mechanical › Face-by-Face contacts Vs. Multiple Face Contacts › Reply To: Face-by-Face contacts Vs. Multiple Face Contacts

December 2, 2024 at 5:39 pm
Gary_S
Ansys Employee

 

I can't say there will be an accuracy issue with a few "massively scoped" contact pairs, however having a greater number of discreet contact pairs may be a bit more efficient for the solver. 

Discrete contact pairs also allow you to confirm (via Contact Trackers) that each contact pair is behaving as expected and transferring load. 

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For : Why does automatic constraint creation tool only allow you to use BODIES in the named selections and not SURFACES!?!?!?!
  The idea is to leverage the auto-detection as much as possible so as to minimize or eliminate having to manually select faces. 
 The Named Selection Bodies restrictons is so that you could have auto-detection groups each with unique criteria for the body types and interfaces.  
 Example: 



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