Activation

Use the subnode to activate or deactivate layers according to an that you define. When the activation expression is satisfied, the material is activated in a state of zero stress.

Shell Properties

Select the layer or layers for which this stress contribution is to be added.

Table 6-15: Layer Selections; Activation
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.

If the same layer is selected in two nodes being active on the same boundary, the second definition will override the previous.

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All other settings for the node are described in the documentation for Activation 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.

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You can describe activation properties 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

Ribbon

Physics tab with node selected in the model builder tree: