Question #235934 on Yade changed:
https://answers.launchpad.net/yade/+question/235934
Yuxuan Wen posted a new comment:
Hello Guys,
I just checked the source file of Hertz-Mindlin model and found that the shear
stiffness ks is a little different with that in Tsuji's paper (1992). In the
source file it is expressed as:
Real Kso = 2*sqrt(4*R)*G/(2-V); // coefficient for shear stiffness"
in line 58. See
https://github.com/yade/trunk/blob/master/pkg/dem/HertzMindlin.cpp
But in Tsuji's paper, it is Kso = 2*sqrt(2*R)*G/(2-V), so a factor of sqrt(2)
exists between these 2 expressions.
Does it matter or is it just a typo? Should we correct it?
Thank you.
Regards,
Yuxuan
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