dfsdf dfsdf

Thank you for your reply!

I think it's because I didn't express it clearly, so I’ll try to simplify the problem.

The external load is a random force.

When this external load F <  μ|FN|, it sticks. When F =  μ|FN|, sliding occurs. When F >  μ|FN|, it's sliding and its frictional force equeals to μ|FN|.

I searched ANSYS contact behavior and I think the frictional contact behavior almost meets my requirements.

But for conta178 element, there is no frictional contact behavior to choose.

Can element conta178 use the frictional contact behavior? or I have to write my own contact behavior.

Thanks for your reply again!