how to get factor of safety for beam chassis in ansys mechanical?

[mg0199]

Hi,

Im having a problem, I have modeled a car chassis in design modeller with lines connecting points then assigning circular cross sections to each line and Im doing an analysis it only lets me get the deformation. I try to click on fatigue tool in the tools option but it does not let me the only options I can use are beam and contact tool. Is there a way to get the FOS option or am I missing something here?

 

[ZeroExperience]

Perhaps you can just calculate it if you have the necessary values?

http://upload.wikimedia.org/wikipedia/en/math/8/1/f/81f470c78d325e08e9e089e9acb94534.png