Simply Supported
The Simply Supported node adds an edge condition that constrains the displacement in the direction perpendicular to the shell. The in-plane rotation perpendicular to the edge is also constrained. Optionally you can constrain the in-plane displacements.
In-plane Displacement Constraints
Select Along edge to constrain the in-plane translation along the edge.
Select Perpendicular to edge to constrain the in-plane displacement perpendicular to the edge.
Constraint Settings
To display this section, click the Show More Options button () and select Advanced Physics Options in the Show More Options dialog box.
In the COMSOL Multiphysics Reference Manual:
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Constraint Reaction Terms
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Weak Constraints
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Constraint Settings
You can activate and deactivate this boundary condition by assigning it to a constraint group. See Load Cases in the Structural Mechanics Modeling chapter.
Location in User Interface
Context Menus
Shell>More Constraints>Simply Supported
Plate>More Constraints>Simply Supported
Ribbon
Physics tab with Shell selected:
Edges>More Constraints>Simply Supported
Physics tab with Plate selected:
Boundaries>More Constraints>Simply Supported