LS Dyna

LS Dyna

Topics relate to LS-DYNA, Autodyn, Explicit STR and more

SOFT = 2 (Segment Based) Contact Downsides

    • Jacob Ellis

      Hi everyone,

      I see a lot of discussion of the benefits of using SOFT = 2 over SOFT = 0 or 1 but outside of the added computational complexity are there any obvious downsides to SOFT = 2?  I feel like I want to move torwards using it as a default algorithm since my problems are often computationally small. Seems to be robust. Any thoughts on edge cases?

    • Ushnish Basu
      Ansys Employee

      SOFT=2 with SBOPT=5, DEPTH=55 works well in a wide variety of cases. Please see the section "About SOFT=2" in the manual for a detailed discussion of SOFT=2 behavior

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