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I am currently running into an issue where the maximum Von Mises stress and the resulting safety factor at the same node do not match. I have read several forums where it is explained that the material yield stress is used for calculating safety factor, in my case I have set both the ultimate tensile and yield to 44ksi, as well as the failure theory to Von Mises under material properties. I am currently getting results of 16.9ksi as my maximum stress at a node, and the corresponding safety factor is 3.034. By calculating SF=(S_yield)/(S_max), I would expect a SF of 2.6.
Note that these results were obtained through a Linear Static analysis.
I additionally read that the safety factor is calculated as the average of the resultant safety factors of that node, however this seems like a considerable deviation form the expected value.
Any light you can shed on this would be greatly appreciated.
Solved! Go to Solution.