You can actually use the help of Composites. But is it sandwiched like composites??
Composites could work. Or just model the parts touching/bonded together. You may need to do a mixed mesh of solids and shells.
Before you can choose, you need to know what the material properties will be in each layer. How they are joined together...etc.
This one is going to be challenging to come up with a method. You'll really need to understand he assumptions in each method and make sure they match the ones you are ok with.