Adjusting the Biaxiality Parameter for Fatigue
Fatigue Advisor allows you to indicate whether you want to apply biaxiality correction during analysis through the use of configuration options. By default, Fatigue Advisor calculates biaxiality correction on a node-by-node basis using three correction methods—Klann-Tipton-Cordes,Hoffman-Seeger, or no biaxiality correction. The software determines which of these methods generates the worst case and reports those results.
You can change these defaults using two configuration options:
• sim_fatigue_biaxiality_correction configuration option — Use this option to indicate whether you want Fatigue Advisor to apply biaxiality correction. The default state for this option is
yes.
• sim_fatigue_biaxiality_method configuration option—Use this option to indicate the method Fatigue Advisor should apply—Klann-Tipton-Cordes, Hoffman-Seeger, or Worst. As mentioned, the default state for this option is Worst. Note that the software only checks the setting for this option if
sim_fatigue_biaxiality_correction is set to
yes.
If you decide to set either of these options to a state other than the default, you should do so based on correlation with test data.