Viscoplasticity
Use the Viscoplasticity subnode to define the viscoplastic properties of the material model.
The Nonlinear Structural Material Module is required for this material model.
Layer Selection
Select the layer or layers for which this viscoplasticity model is to be used. The Layer selector inherits the value set in the parent Linear Elastic Material node. When it is set to All layered materials, you cannot access the individual layers.
When the viscoplasticity model differs between layers, you will need to add several Viscoplasticity nodes with different layer selections. If the model is the same, and only the material data values differ, you can use a single Viscoplasticity 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 Viscoplasticity nodes being active on the same boundary, the second definition will override the previous.
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All other settings for the Viscoplasticity node are described in the documentation for Viscoplasticity in the Solid Mechanics interface.
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For a general description of layer and interface selections, see The Layer Selection Section.
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You can provide material parameters with a through-thickness variation by explicitly or implicitly using expressions containing the extra dimension coordinate as described in Using the Extra Dimension Coordinates.
Location in User Interface
Context Menus
 Layered Shell>Linear Elastic Material>Viscoplasticity
Ribbon
Physics tab with Linear Elastic Material node selected in the model tree:
Attributes>Viscoplasticity