Hi Reza,

In CAD, if mulitple bodies are United into a single body, then only one material assignment is possible.

In SpaceClaim, when you use Share on multiple bodies, each body can have a different material assignment. It is only the nodes on the edges of a body that are shared so that the bodies are connected.

I will have to look at the Simutech article and see if I can answer your other question later.