I would like to ask if I want to us

[han_cyuan]

I would like to ask if I want to use the rough function of interaction and encounter convergence problems, can I directly change the minimum value of the time increment to a smaller value so that the analysis can converge?

 

[FEA way]

Rough friction is typically used with no separation option and then convergence issues usually don’t occur. Of course, you can try reducing the minimum time increment but it’s rather unlikely to help. Try using stabilization instead.