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Symmetry

You can use symmetry to model a portion of the model instead of the full model. The results on the un-modeled portions are deducted from the modeled portion. When appropriate, taking advantage of symmetry can help you reduce the size of the problem and obtain more accurate results.

The procedures to apply the symmetry restraint type to solid meshes and shell meshes using mid-surface are identical.

Symmetry requires that geometry, restraints, loads, and material properties are symmetrical. In general, using symmetry is not recommended for buckling and frequency studies.

Attribute

Value

DOFs restrained for solid meshes

1 translation

DOFs restrained for shell meshes

1 translation and 2 rotations

3D symbol

solid mesh

shell mesh

Selectable entities

Flat faces only

Translations

The program automatically applies the translation and rotation conditions on selected faces.

Rotations (for shells only)

Symmetry restraints for solid models

Symmetry Restraints for shell models

 



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