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General Mechanical

General Mechanical

Topics related to Mechanical Enterprise, Motion, Additive Print and more.
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  3. Numerical damping in explicit dynamics

Numerical damping in explicit dynamics

    • November 21, 2023 at 12:46 pm
      Costas
      Subscriber

      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,

      Costas

    • November 28, 2023 at 1:42 pm
      Ashish Khemka
      Forum Moderator

      Hi,

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

      Regards,

      Ashish Khemka

    • December 1, 2023 at 4:27 pm
      Costas
      Subscriber

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

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