Mat-187L card menu in workbench

- December 4, 2025 at 6:31 am
  
  rluo
  Subscriber
  
  Workbench 2025R2 start support Mat187L. In workbench it only provide 2 options for "the strain rate caculation"? EQ1 is best but missed. Can Ansys correct it in next version?
- December 4, 2025 at 8:24 am
  
  ErKo
  Ansys Employee
  
  Hi
  
  Reason it is not there is that in 2025 R2 LS-Dyna keyword manual II (R14 is used in WB LS-Dyna) it is not there:
  
  RATEOP Calculation of effective strain rate option:
  EQ.0: Original method for calculating the effective strain rate
  EQ.2: Improved method for calculating the effective strain rate.
  This method gives a slightly closer match to *MAT_-
  SAMP-1 and is thus recommended.
  Thanks for letting us know though that it exists in R16 manuals&LSPP – so you would need to open up a support ticket (ACSS) direct or via channel partner (cadmen) and ask for an enhancement request on this (cadmen will then create one for you).
  
  All the best
  Erik