Defining a Fatigue Check Plot

The Fatigue Check Plot alerts you if certain regions of your model are likely to fail due to repeated loading and unloading over infinite time. If regions of your model are shown in red, you should set up a Fatigue study.

1. Set up a Static study with the appropriate material, contact conditions, loads and fixtures. Allowable mesh types are: solid, shell, and mixed mesh with surface and solid bodies.
2. After you run the study, in the Simulation study tree, right-click Results , and select Define Fatigue Check Plot.
3. In the PropertyManager:
   1. Under Bodies to Check, select one or all bodies.
   2. Under Modifying Factors, select the Loading type.
   3. Type the reduction factors for the fatigue strength of the selected bodies, or select Specify to set a cumulative reduction factor.

   In the graphics area, regions of the model that are safe from fatigue failure are blue, and regions that are likely to fail due to fatigue are red.

   You can also modify the fatigue strength and rerun the fatigue check plot module. Under Material, type a scale factor between 1 to 5 to increase it, or a safety factor between 1 to 5 to reduce it. Click in the graphics area to update the fatigue check plot.