The Hyperelastic Material, Layered node adds the equations for a layered hyperelasticity at large strains. Hyperelastic materials can be suitable for modeling rubber and other polymers, biological tissue, and also for applications in acoustoelasticity.
If the Composite Materials Module is available, this material model can be applied to arbitrary layers in a multilayered shell. The material properties and layer thicknesses are defined using Layered Material node. The offset, and local coordinate system, in which material orientations and results are interpreted, is defined by
Layered Material Link or
Layered Material Stack node.
By adding the following subnodes to the Hyperelastic Material, Layered node you can incorporate many other effects. Some of these material models are only available together with the Nonlinear Structural Materials Module (see
https://www.comsol.com/products/specifications/).
For this node, the Shell Properties section is only used for selecting a material model, but not individual layers.
The boundary selection in this node is similar to the Linear Elastic Material node. It is however only possible to select boundaries which are part of the selection of a layered material defined in
Single Layer Material,
Layered Material Link or
Layered Material Stack node.
Select a Material model and enter the settings as described for the
Hyperelastic Material for the Solid Mechanics interface.