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LS Dyna

LS Dyna

Topics related to LS-DYNA, Autodyn, Explicit STR and more.
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  3. Nodal rigid body problem

Nodal rigid body problem

    • April 3, 2026 at 1:35 pm
      tut06916
      Subscriber

      In LS-DYNA, when defining multiple *CONSTRAINED_GENERALIZED_WELD_SPOT constraints, if the node sets of two constraints contain the same node, the following error is reported:

      Does LS-DYNA have another type of constraint or tie that allows two constraints to have node sets sharing the same node?

    • April 3, 2026 at 2:58 pm
      ErKo
      Ansys Employee

      Perhaps use spotweld beams (*MAT_SPOTWELD_TITLE and elform=9 on beam section)
      Sure other users might have other ideas - wait for feedback.
      All the best
      Erko

      • April 3, 2026 at 3:12 pm
        tut06916
        Subscriber

        Should I use *ELEMENT_BEAM or *ELEMENT_DISCRETE to create elements btw 2 nodes? And what section should I use?

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