Prescribed Displacement
The Prescribed Displacement node adds a condition where the displacements are prescribed in one or more directions to the selected geometric entity (boundary, edge, or point). It is also possible set maximum and minimum limits for the displacements, so that for example a one-sided support can be modeled.
If a displacement is prescribed in one direction, this leaves the material free to deform in the other directions.
To prescribe displacements on interfaces between the material layers, use Prescribed Displacement, Interface.
Shell Properties
Select the layer or layers on which this constraint is to be used.
Table 6-29: Layer Selections; Prescribed Displacement.
Selection
Use All Layers
Selection of Individual Layers
Boundary, Edge, Point
Same as interface selection when the node is added.
When Use all layers is not selected.
Only a subset of the layers selected in the physics interface can be selected.
If the same layer is selected in two Prescribed Displacement nodes being active on the same boundary, the second definition will override the previous.
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All other settings for the Prescribed Displacement node are described in the documentation for Prescribed Displacement 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 prescribe displacements 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>Face and Domain Constraints>Prescribed Displacement
Layered Shell>Prescribed Displacement (Edge)
Layered Shell>Points>Prescribed Displacement
Ribbon
Physics tab with Layered Shell selected:
Boundaries>Face and Domain Constraints>Prescribed Displacement
Edges>Layered Shell>Prescribed Displacement
Points>Layered Shell>Prescribed Displacement