Symmetric constraint (Simcenter Samcef)

The Symmetric Constraint allows you to define a symmetry condition.

In the plane of symmetry:

• Translations in the plane are free.

• Rotation about the plane's normal is free.

All other degrees of freedom are fixed.

When you apply symmetric constraint to a planar face, a local nodal Cartesian coordinate system is defined, with its X-axis normal to the plane.

The corresponding Simcenter Samcef input file entries are:

• .FRAME - to define the plane's local coordinate system.

• .AXL FRAME - NOEUD - to attach the local coordinate system to all the plane's nodes.

• .CLM NOEUD - FIX C 1 5 6 to lock out-of-plane translation and in-plane rotations.

Where do I find it?

Application	Pre/Post
Prerequisite	A Simcenter Samcef simulation file as the work part and displayed part and a solution active
Command Finder	Symmetric Constraint
Simulation Navigator	Right-click the Constraint container→New Constraint→Symmetric Constraint

Look up more details

Symmetric Constraint dialog box

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Symmetric constraint (Simcenter Samcef), Simcenter 3D 2021.1 Series

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