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[Jérôme Duriez <question689015@xxxxxxxxxxxxxxxxxxxxx>]

Question #689015 on Yade changed:
https://answers.launchpad.net/yade/+question/689015

Jérôme Duriez proposed the following answer:
Since FrictMat.young has no physical meaning when using
Ip2_FrictMat_FrictMat_FrictPhys (which is understated here), another
reason could be "why not 2, or even 10" ;-)

This would just modify the input value for this stress-like stifness
parameter. Where any input value, for any formulation with 2 or 10 or..
, would be equally as correct as long as they give satisfactory results.

PS : Would you feel more confortable reading [1] ? (which does reflect
the source code at [2], and your observations)

[1] https://yade-dem.org/doc/yade.wrapper.html#yade.wrapper.Ip2_FrictMat_FrictMat_FrictPhys
[2] https://gitlab.com/yade-dev/trunk/-/blob/master/pkg/dem/FrictPhys.cpp#L37

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