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LS Dyna

LS Dyna

Topics related to LS-DYNA, Autodyn, Explicit STR and more.
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Free-Field Boundary Conditions

    • July 2, 2026 at 7:59 am
      muhsinacarr
      Subscriber

      Hi all,

      How can I create free field boundary condition without using *CONSTRAINED keyword. I cannot use these periodic boundary conditions as I have geometry effects. I tried Non-Reflecting Boundaries but they cause boundary effects. Any insights would help a lot.

      Best,

      Muhsin

       

    • July 7, 2026 at 7:28 pm
      Dennis Chen
      Subscriber

      Hello, I am relatively sure boundary_non_reflecting is what you use in this case.   Based on the doc, it is only limited to solid elements.    

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