Polymer Viscoplasticity
Use the Polymer Viscoplasticity subnode to define the viscoplastic properties of a Hyperelastic Material, Layered node.
The Nonlinear Structural Materials Module is required for this feature. For details, see https://www.comsol.com/products/specifications/.
If the Composite Materials Module is available, viscoplastic models can be applied to arbitrary layers in a multilayered shell.
See also Layered and Nonlayered Shells.
Shell Properties
Select the layer or layers for which this viscoplastic model is to be used.
Table 5-9: Layer Selections; Polymer Viscoplasticity.
Selection
Use All Layers
Selection of Individual Layers
Boundary
Same as parent selection when the node is added.
When Use all layers is not selected.
Only a subset of the layers selected in the parent can be selected.
When the viscoplastic model differs between layers, you will need to add several Polymer Viscoplasticity nodes with different layer selections. If the model is the same, and only the material data values differ, you can use a single Polymer Viscoplasticity node where From material is used to define the values. The data for each layer is then received from global Layered Material nodes.
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All other settings are described in the documentation for Polymer Viscoplasticity in the Solid Mechanics interface.
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For a general description of layer and interface selections, see The Shell Properties and Interface Selection Sections.
Location in User Interface
Context Menus
Shell > Hyperelastic Material, Layered > Polymer Viscoplasticity
Ribbon
Physics tab with Hyperelastic Material, Layered node selected in the model tree:
Attributes > Polymer Viscoplasticity