peteroznewman
Subscriber

1) I don't work in Mechanical APDL so I don't use NUMMRG and I don't get that warning message, so I don't know. Someone else may comment.


2) Nodes can both connect elements and have boundary conditions such as loads, supports and contact elements. It all works together.


I don't work in Mechanical APDL so I don't have to know the APDL commands that create contact. I use Workbench where I have menu picks such as Contact which I can set to Frictional and pick the Target side and the Contact side. Under the hood, Mechanical creates the correct element types. Open the ANSYS help and read about Frictional Contact.