What is a good basis for determining if a part will fail due to fatigue damage? Is it valid to take the fatigue strength of the material divided by three (3 sigma approach) and use this number as the limit?
I am trying to design an antenna bracket that will pass the vibration exposure limits specified in mil-std-810. I modeled the bracket into Solidworks and ran FEA analysis and I have the stress results in each direction resulting from the Grms loading per Miles equation. Using the 3-sigma...