Fatigue in LS-Dyna

- October 24, 2023 at 6:46 pm
  
  javat33489
  Subscriber
  
  Hi all.
  I'm simulating drilling in LS-Dyna.
  I've now reached the wear and tear stage. I want to calculate wear using the classical method, using the SN curve.
  I have a dilemma about which method to choose. This will be one of three:
  1.SN curve + FATIGUE card
  2.SN curve + FREQUENCY_DOMAIN_RANDOM_VIBRATION_FATIGUE card
  3.SN curve + FATIGUE_MULTIAXIAL card.
  Thank you.
- October 25, 2023 at 3:42 pm
  
  Ushnish Basu
  Ansys Employee
  
  It depends on what type of loading you have: deterministic unaxial, random vibration, or multiaxial loading, and you would be the best judge of that.
  - October 25, 2023 at 5:10 pm
    
    javat33489
    Subscriber
    
    Yes, but I need advice. I have submission and appeal.
- October 25, 2023 at 6:58 pm
  
  Ushnish Basu
  Ansys Employee
  
  We cannot answer case-specific questions on this forum. Please contact your Ansys account manager to see if we can provide you with more specific help directly