June 21, 2022 at 5:09 pmjavat33489Subscriber
Hi all. How to add contact stiffness in LS-Dyna Workbench like in LS-Dyna Prepost? SFS and SFM
June 29, 2022 at 1:49 pmRam GopisettiAnsys Employee
Hi SFS and SFM are stifness factors which has to be adjust to achive appropoate contact stifness and it is governed by the follwing equation
k = max(SLSFAC * SFS * k0, SOFSCL * k1)
so you need to tune this parameter via trail and error method. untill you are satisfied with the contact forces which might be affected due to contact stifness. In fact the defaults are great to start. Check the follwing study to see how the SFS and SFM affected the resultant contact force.
July 8, 2022 at 5:52 pmjavat33489Subscriber
Thanks, how do I enable them in Workbench LS-Dyna?
July 14, 2022 at 6:05 pm
July 15, 2022 at 4:12 pmjavat33489Subscriber
Thanks, I’ll try.
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