Jim Day
Ansys Employee
There's no reason to use the penalty-based OFFSET option here. Eliminate the "_OFFSET". Also, I'd define 3 separate tied contacts (since you have 4 layers of tshells) and use segments sets in defining those contacts, specifying only the segments you want to be tied for each contact. I don't think the ERODING contact would interfere, but if the tied contacts still fail, only as an experiment, you could comment out the ERODING contact and see if the ties hold.