I'm testing a part for fatigue, and I got a time series of Forces and Moments on three different parts of the body (A wind turbine hub). From the static structural fatigue analysis, I noticed that you need a von mises stress input - that's not a problem. My problem is, how do I place different stresses at different parts of the hub? Basically I have time series data at three blade roots. All of the loads will have the same time step. I do not see a way to determine where you place the loads.