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Structural Dynamics

Structural Dynamics

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  3. Which options are recommended for cases where hourglassing stubbornly persists?

Which options are recommended for cases where hourglassing stubbornly persists?

Tagged: 17, Explicit - LS-DYNA, LS-DYNA (Explicit), mechanical-apdl, structural-dynamics, structural-mechanics
    • March 17, 2023 at 9:00 am
      FAQFAQ
      Participant

      These commands can be used to eliminate stubborn hourglassing problems: edmp,hgls,1,5 edmp,hgls,2,5 edmp,hgls,3,5 These viscous hourglass control options were the “silver bullet” in one case where they eliminated the hourglassing. So, the Flanagan-Belytschko stiffness form with exact volume integration with default coefficient (0.1) appear to be the settings necessary.

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