Dielectric Loss
The Dielectric Loss subnode allows you to model losses in the electrical losses in a Piezoelectric Material. The losses can be prescribed either by using a loss factor for the electrical permittivity, or in the form of dielectric dispersion.
Shell Properties
Select the layer or layers for which this loss model is to be used.
Table 6-22: Layer Selections; Dielectric Loss
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 loss model differs between layers, you will need to add several Dielectric Loss nodes with different layer selections. If the model is the same, and only the material data values differ, you can for most models use a single Dielectric Loss node with From material. The data for each layer is then received from global Layered Material nodes.
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All other settings for the Dielectric Loss node are described in the documentation for Coupling Loss 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 loss 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
Layered Shell>Piezoelectric Material>Dielectric Loss
Ribbon
Physics tab with Piezoelectric Material node selected in the model tree:
Attributes>Dielectric Loss