Hi guys

I want to do a simulation study on a composite chassis. The aim is to find the torsional stiffness. I 'm using the sandwich function in the shell definition manager and select the faces with the correct orientation and then apply my custom materials to each layer (shell definition picture). When I click OK though no materila is applied on the shell (pic 2). So if I right click on the shell and apply material it will work but that is not what I'm trying to do. If I run the simulation without doing that it will give an error saying to specify Elastic modulus of the materials or some other property.

Does anybody have any idea why is not recognizing my composite?

The problem is not the custom materials because I tried with Solidworks library and does the same thing.

Thanks in advance

Nick