8 Replies Latest reply on Sep 9, 2014 1:11 AM by Jared Conway

    Fatigue Study when Stress in the model exceed S-N value

    Pk M



      I am trying to run a fatigue study to estimate life of the product. Static study showed that results are well within in yield value for most of the body with few edges & spots where stress value was much more than yield value. I still need to investigate if those higher stress values are because of stress concentration.Before spending any more time on that, I just wanted to run a fatigue study with existing study to see how results are. When I run the study, I got message which says that stress value in the model is more than that of S-N curve. It is asking me if 1. either to update the S-N curve and continue study or 2. run the study with smallest number of cycles from S-N curve.


      Just in case, if those stress values are because of stress concentration, is there any way to manually specify stress intensity (P1-P3) to run the fatigue study?


      I attached actual message I got.


      thank you,

      pk pavv

      SW 2014 SP 2.0

      Win 7 X64