General Mechanical

General Mechanical

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Numerical damping in explicit dynamics

    • Costas

      Hello everyone.

      I wish to ask if the mesh size in explicit dynamics affects the numerical damping and how. Could you please suggest any relevant publications?

      Does Ansys uses bulk viscosity as numerical damping? If this is the case, then I would expect that finer mesh (i.e. smaller elements) to produce less numerical damping. Is that correct. 

      Many thanks,


    • Ashish Khemka
      Forum Moderator


      Please see if the following link helps: 4.1.4. Explicit Dynamics Damping Controls (


      Ashish Khemka

    • Costas

      Many thanks for your response. Unfortunately, I can't find something relevant in the link you suggest.

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