udme98
Mechanical
- Aug 27, 2007
- 4
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 approach, what do you use as a failure limit? At first I have been using the fatigue strength of aluminum divided by three. Is this correct/any suggestions?
Is there a way to estimate the life of the part in years at the computed stress levels, possibly using Miners'? Any feedback would be appreciated. Thanks.
Is there a way to estimate the life of the part in years at the computed stress levels, possibly using Miners'? Any feedback would be appreciated. Thanks.
