About Fatigue Options
Use these options to control fatigue analysis. You can also access some of these options on the
Fatigue Analysis Definition dialog box. For more information on each of these settings, see
Fatigue Analysis.
sim_fatigue_biaxiality_correct
Controls the use of biaxiality correction. The value types are as follows:
• yes*
• no
sim_fatigue_biaxiality_method
Specifies the method used to model biaxiality. The value types are as follows:
• auto*
• simple
• standard
sim_fatigue_confidence_level
Specifies the percentage confidence in the predicted life result value. The value type is numeric and may range from 0.1 to 99.9. The default value is 90.
• 90*
• 0.1 to 99.9
sim_fatigue_external_matdata
Controls the use of external material data in a fatigue analysis. The value types are as follows:
• no*
• yes
sim_fatigue_infinite_life_value
Specifies a value for the lives beyond cutoff. The value type is numeric and may range from 1e15 to 1e30. The default value is 1e20.
• 1e20*
• 1e15 to 1e30
sim_fatigue_max_safety_factor
Specifies the value of the maximum factor of safety. The default value is 5.0 and the value may range from 2.0 to 5E6.
• 5.0*
• 2.0 to 5E6
sim_fatigue_mean_stress
Controls the application of the mean stress correction. The value types are as follows:
• yes*
• no
sim_fatigue_mean_stress_method
Specifies the method used to model mean stress: the Smith-Watson-Topper Approach or Morrow Correction. The value types are as follows:
• morrow*
• swt
sim_fatigue_safety_margin
Specifies the factor used to determine the Confidence of Life quantity. The value type is numeric and may range from 1.1 to 100. The default value is 3.
sim_fatigue_user_directory
Specifies the path for user specific files, for example, external materials files. The default value is the path to the current directory.
sim_fatigue_write_surf_stress
Controls the writing of surface stresses to a neutral file.
• no*
• yes