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LS Dyna

LS Dyna

Topics related to LS-DYNA, Autodyn, Explicit STR and more.

question about S‑ALE

    • sqslh
      Subscriber

      Additional controlled test completed: a 2× S‑ALE mesh refinement changed the maximum total-energy loss only from 1.58755% to 1.59180%. Mass conservation, geometry, stable timestep, GLSTAT component closure and material-account closure all pass. The loss is primarily associated with the EMULSION material.

      Could anyone clarify two R16.1 output semantics questions?

      1. Is Ekinlos an additive energy term that should be included in the global conservation balance?
      2. Which supported database/output gives per-cell, per-material internal energy, kinetic energy and burn fraction for axisymmetric S‑ALE with *MAT_HIGH_EXPLOSIVE_BURN/JWL?

      These definitions are needed before further numerical changes can be interpreted.

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