Erik Kostson
Ansys Employee

Hi

I think it is quite clear - there is a frictionless support betwen faces that meet at a common edge/ So that shared edge will see two different supports. So mechanical is trying to apply that (needs to have a nodal coordinate system that is good), and if does it might be ok.

In practice, what does this mean.

So this means that it is best to check the results carefully, and especially around these common edges.

All the best

Erik