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Re: [Question #549040]: Poison coefficient calibration

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From: Jérôme Duriez <question549040@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 09 Mar 2017 23:23:42 -0000
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Question #549040 on Yade changed:
https://answers.launchpad.net/yade/+question/549040

    Status: Open => Answered

Jérôme Duriez proposed the following answer:
Hi,

This has been discussed in length in the DEM litterature since e.g.
Micromechanical Aspects of Isotropic Granular Assemblies With Linear
Contact Interactions, R. J. Bathurst and L. Rothenburg, Journal of
Applied Mechanics, 1988.

Assuming you're using in YADE FrictMat contact models or derived classes, such as JCFpm model, the answer is "the ratio of normal over tangential contact stiffnesses", i.e. ........ poisson [*] ! 
(the name is completely misleading, though...)

[*] https://yade-
dem.org/doc/yade.wrapper.html#yade.wrapper.JCFpmMat.poisson

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