Common boundary but normal independant

Hi everybody,


I am a trainee in Aerospace and I am doing a model about welding, I use Heat transfer and Structural analysis, because I want to make a model of laminate's displacement.

I use COMSOL 3.5a, and one of my part to weld is on wood, so there is a common boundary between wood and laminate. The problem is that I want to see the deformation of the laminate, because normally it is going up but the wood does not have to go up with laminate. I want to know if I can separate wood from laminate in boundaries conditions ? And how to do it, please ?


I give you a picture of my geometry for your understanding.


Thanks for your replies and sorry for my English, I am French.


F.YVON