Learning Forum

[VIGNESHWARAN M]

Im using Ansys student 2023 version and I m not able to find the fatigue tool in Mechanical

[Daniel Shaw]

The Mechanical Fatigue Tool (FT) is not available with all license levels.  Where you previously able to access the FT with a Student license?

[VIGNESHWARAN M]

Sorry Daniel. I found out that Fatigue tool is not supported with symmetry boundary condition which I had used in the setup. After I removed the symmetry and scaled down my model to meet student license limits, I was able to use the Fatigue tool.

[Daniel Shaw]

Yes, you are correct that the FT cannot be used with symmetry boundary conditions.  That limitation is documented.  Sorry for not mentioning it, but I did not see a Symmetry Condition in the Mechanical Tree.  The FT is blocked when the tree has a Symmery Object, because it cannot be used with cyclic symmetry.  If you need general symmetry, you can impose a Frictionless Support on the symmetry face rather than using a Symmetry Object.  The FT works fine with a Frictionless Support.  It is the presence of the Symmetry Object in the tree that blocks access to the FT.