COMSOL 6.3 - Inelastic Strain Rate

Inelastic Strain Rate

The subnode allows you to provide inelastic strain contributions to the material models , , and on a variety of formats as in External Strain. Here, however, the inelastic contribution is given as a rate, and the total inelastic contribution is computed by integrating this rate in time.

Shell Properties

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

Table 6-19: Layer Selections; External Strain.
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.

Coordinate System Selection

The list contains all applicable coordinate systems in the model, including the and the . The is selected by default. Inelastic strains are specified along the axes of the selected coordinate system.

If the inelastic strain input type differs between layers, you will need to add several nodes with different layer selections.

If the same layer is selected in two nodes being active on the same boundary, the contributions will be added.

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See Defining a Layer Local System in the Composite Materials Modeling chapter.

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All other settings are described in the documentation for Inelastic Strain Rate 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 strain values 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 or node selected in the model builder tree: