Learning Forum

[tado_upmc]

Hello everyone,

I am trying to simulate the behavior of a clip, which involves contact between a curved surface and a plane. However, I am encountering an issue where, as the plane slides along the curved surface, the gap between the surfaces increases unexpectedly. This leads to a change in the contact status to "no contact," which affects the accuracy of my simulation.

Could anyone advise on the correct contact settings for this type of interaction? Specifically, I'm unsure how to handle the sliding behavior and gap formation. Any tips on improving contact stability or preventing loss of contact would be greatly appreciated.

Thank you in advance for your help!

[Erik Kostson]

 

 

Hi

It is good to go through the help manual (search for contacts) to see what these settings are.

We do have also a free training course on contacts:

https://innovationspace.ansys.com/product/contact-mechanics/

All the best

Erik

 

 

[tiwari15abhinav]

Hi, I think the program controlled settings work best for the contacts. However, if you still see some penetration try giving contact sizing and try refining the mesh in the contact surfaces.

If these contact settings wouldn't work i will go with:

1. Contact formulation : Augmented Lagrange
2. Detection Method: Nodal Normal to target
3. Penetration tolerance turned on with low value of tolerance 
4. stiffness : Factor
5. Stiffness factor: if both clip and plane are same material Use 1 if one material is soft use 1e-2
6. update stiffness: Each Iteration
7. Pinball radius : Program Controlled
8. Interface Treatment : add offset, No ramping