Hello,

I'm trying to simulate and compare principal stresses in model of bolt and nut, for different material data. I would like to get the soft/hard stage comparison. The problem is that I just do not know how to define hard stage material, it is not in standard material library in ansys (workbench or classic).

If anyone could help me giving some examples of hard stage materials data I would be greatfull.

I know that I should have a coated thread on bolt, but this is way to complcated (I think) and I would like jus to apply material to whole model and than create some comparison plots of principal stress on thread (stress/probe number).

Thanks in advance

Michael