If you create an Archive .wbpz file and attach it to your reply, and say what version of ANSYS you are using, I will look at the solution and look at how the yield strength is divided by the max equivalent stress and compare that with the Safety Factor.

The .wbpz file must be < 120 MB to attach. Do not save results. If it is too large without results, you also have to Clear Generated Data on the Mesh to make the file as small as possible.