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LS Dyna

LS Dyna

Topics related to LS-DYNA, Autodyn, Explicit STR and more.
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  3. Mass matrix for 4-noded plane stress element elform=12

Mass matrix for 4-noded plane stress element elform=12

    • June 17, 2026 at 6:41 pm
      sockalin
      Subscriber

      Hello,

      How does LS-DYNA compute the consistent mass matrix (before diagonalizing) for a 4-noded plane stress element? Reduced or full integration of the consistent mass matrix?

      Thanks.

    • June 18, 2026 at 6:57 am
      ErKo
      Ansys Employee

      Hi

      We have a theory manual :

      LSDYNA Manuals

      See if something is stated there - if not we can not provide much more detail as it is not in the public domain.


      Thank you

      Erko

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