Hygroscopic Swelling
Use the Hygroscopic Swelling subnode to add an internal thermal strain caused by changes in temperature.
Hygroscopic swelling can be modeled for Linear Elastic Material, Layered Linear Elastic Material, Nonlinear Elastic Material, and Hyperelastic Material. For the Layered Linear Elastic Material, the swelling can be applied to arbitrary layers in a multilayered membrane when the Composite Materials Module is available.
Shell Properties
This section is present only when the Hygroscopic Swelling node is used under Layered Linear Elastic Material.
Select the layer or layers for which this swelling strain contribution is to be added.
When Use all layers is not selected.
If the Moisture concentration type differs between layers, you will need to add several Hygroscopic Swelling nodes with different layer selections. If only the material data values differ, you can use a single Hygroscopic Swelling node with From material. The data for each layer is then received from global Layered Material nodes.
If the same layer is selected in two Hygroscopic Swelling nodes being active on the same boundary, the second definition will override the previous.
When adding a Hygroscopic Swelling subnode, and the concentration field is computed by another physics interface; use a discretization one order lower for the concentration field than what is used for the displacement field.
All other settings for the Hygroscopic Swelling node are described in the documentation for Hygroscopic Swelling in the Solid Mechanics interface.
Location in User Interface
Context Menus
Ribbon
Physics tab with Linear Elastic Material, Layered Linear Elastic Material, Nonlinear Elastic Material, or Hyperelastic Material node selected in the model tree: