General Mechanical

General Mechanical

Topics relate to Mechanical Enterprise, Motion, Additive Print and more

Question about randomness of result

    • JooJaehoon
      Bbp_participant
      Hello!
       
      I'm conducting static analysis on plate
       
      I inflict 5.88 MPA clamping pressure using other plate indirectly
       
      I got equivalent stress distribution and I attached a picture, but, I have doubt about this result because of it's randomness.
       
      Should I use this result? or, how can I decrease randomness of result?
       
      Thank you.

       

  • peteroznewman
    Bbp_participant

    One way to smooth the contact pressure distribution is to change the default normal stiffness. 

    Ansys Contact Behaviours: Formulations - Mechead.com

    Change Normal Stiffness to Factor and use a value of 0.1 or 0.01 instead of the default value of 1.0 and change Update Stiffness to Every Iteration.

    Another thing you can do is use a finer mesh in the contact region. This is easily done using a Contact Mesh Sizing control.

    Take the free course on Contact Mechanics.

    • JooJaehoon
      Bbp_participant

      Hello ! Peter !

      Thank you for applying to my qustion.

      I'll try to modify stiffness term and check a result

      have a good day.

    • JooJaehoon
      Bbp_participant

      I solved problem!

      I'm glad to your advice!

    • JooJaehoon
      Bbp_participant

      I solved a problem!

      I'm glad to your advice!

  • Viewing 1 reply thread
    • You must be logged in to reply to this topic.