Subbmodel

[Leoeng82]

http://www.eng-tips.com/threadminder.cfm?pid=1234&page=1

Hi, I am trying to do something like in the picture attach. I wonder if someone can help me to check if that is possible to build a sub model with three layers. there contents shell, solid and shell: I don't know if we need to make connect between them to fix them or not? The idea, I want to study the sub model and test if it is give the same result when it is in global model and when it is alone. I try to do the global model without a sub model as laminate. I don't know if i give a clear information to my problem. You can ask so give you explanation.