Applying Symmetry Fixtures Apply symmetry fixtures to the faces of symmetry of the assembly as follows: In the Simulation study tree, right-click Fixtures in the ThermalStress study and select Fixed Geometry. The Fixture PropertyManager appears. On the Type tab under Advanced, click Symmetry. In the graphics area, select the two faces of symmetry of the model as shown for Planar Faces for Fixture . Click . Parent topicThermal Stress Analysis Previous topic Fixing the Back Face of the Substrate Next topic Meshing the Model and Running the Study