Fixed Constraint

Use the node to set all displacements on the selected entities to zero. It is available for boundaries, edges, and points.

To constrain interfaces between the material layers, use Fixed Constraint, Interface..

Layer Selection

In the node, you cannot access individual layers. Thus the selection in this section only acts as a filter for the boundary selection.The constraint is applied all through the thickness of the shell.

Table 6-11: Layer Selections; Fixed Constraint
Selection	All Layered Materials	Layered Material Definitions	Selection of Individual layers
Boundary	Default	Selectable	Not available
Edge	Default	Selectable	Not available
Point	Default	Selectable	Not available

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All other settings for the node are described in the documentation for Fixed Constraint in the Solid Mechanics interface.

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For a general description of layer and interface selections, see The Layer Selection Section.

Location in User Interface

Context Menus

(Edge)

Ribbon

Physics tab with selected: