About Symmetry Conditions

Different symmetry conditions can be defined for an optimization in SIMULIA Tosca Structure. They can be used for obtaining symmetrical results using non-symmetrical meshes, saving the processing time for the FE-calculation. Furthermore, symmetrical load case can often be reduced in the FE model.

The following symmetry conditions are available with SIMULIA Tosca Structure:

  • reflection symmetry
  • point symmetry
  • rotational symmetry
  • cyclic symmetry (replication of an area with a given distance)
  • link condition (coupling of arbitrary areas of the model)

A beam without symmetry (left) and with reflection symmetry (right) is shown in the following figure.



An example of point symmetry (left) and rotational symmetry (right) is demonstrated as next.



The last example demonstrates the cyclic symmetry (left) and a link condition (right).