Add the Layered Shell–Shell Connection multiphysics node () to create models where a combination of the Layered Shell interface and the Shell interface are used for different layers in the same layup. Thus, both interfaces are active on the same boundary. This type of modeling (multiple model method) is efficient in components, where some layers are thin, while other layers are significantly thicker.

The Layered Shell–Shell Connection node is only available with some COMSOL products (see https://www.comsol.com/products/specifications/)

Select the Layered Shell interface and Shell interfaces to couple.

Select Apply to — Interior Interfaces or Selected Interfaces.

For Interior Interfaces, any interface shared between the two type of element formulations will be bonded.

For Selected Interfaces, you have the possibility to select the interfaces to be bonded. In this case, select the applicable interfaces from the Layer list.