Question #681383 on Yade changed:
https://answers.launchpad.net/yade/+question/681383
Status: Open => Answered
Jan Stránský proposed the following answer:
> Real Kna = mat1->young
It is because PolyhedraMat derives from FrictMat. Meaning of 'young' in this
case is stiffness modulus in normal direction, not strictly Young's modulus. It
could be redesigned/renamed.
Actually Jan Elias, the original author, did not derived PolyhedraMat from
FrictMat, but from Material. This change was done by me afterwards.. It has
pros and cons..
> i have read some code in file examples/polyhedra,all the unit of young
is pa,which means that the unit of kn is pa too. can you explain that?
The comments are wrong
cheers
Jan
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