mohan.urs
Ansys Employee

Hey, 

Adding to Stella's reply

To know more about symmetric and asymmetric behavior you can check out his link from ANSYS help. Do check if you've assigned the correct contact and target surfaces too. It is covered in the same article.
https://ansyshelp.ansys.com/Views/Secured/corp/v242/en/ans_ctec/Hlp_ctec_dessurf.html

To ensure you're doing it right, you should check the following:

1. Ensure that the material properties for both the plate and the concrete slab are defined correctly.
2. Verify that the boundary conditions, especially the constraints on the wells and holes, are accurately represented.
3. Review the contact definitions and ensure that the contact behavior is appropriate for the physical scenario you are trying to simulate.
4. Consider the mesh quality and density, as they can significantly affect the accuracy of the contact and stress results.
5. Perform a convergence study to ensure that the results are not sensitive to the size of the mesh elements.

Regards,

Mohan Urs