I'm trying to model a contact between the head of a screw and the supporting plate on which the bolt will lie. Of course, just one quarted of the model it's used to represent the situation.
As user profile, I select Optistruct. Since the model is axisymmetric, I want to know first of all if ithere are some specific 2D elements to take into account this aspect or if it enough to put a contraint along the axis.
Moreover, since the model is completly flat, I want to understand which is the best way to represent the contact.