Question #683001 on Yade changed:
https://answers.launchpad.net/yade/+question/683001
Status: Open => Answered
Jan Stránský proposed the following answer:
> What puzzles me is that polyhedra do not have radius r, then how to
calculate normal stiffness between polyhedra and sphere
the same way as it does for walls, facets... just considers that the
other body has some artificial radius related to the sphere's radius
(e.g. equal) [1,2,3]
cheers
Jan
[1] https://gitlab.com/yade-dev/trunk/blob/master/pkg/dem/FrictPhys.cpp#L19
[2] https://gitlab.com/yade-dev/trunk/blob/master/pkg/dem/Polyhedra_Ig2.cpp#L419
[3] https://gitlab.com/yade-dev/trunk/blob/master/pkg/dem/Polyhedra_Ig2.cpp#L335
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