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[Jan Stránský <question685862@xxxxxxxxxxxxxxxxxxxxx>]

Question #685862 on Yade changed:
https://answers.launchpad.net/yade/+question/685862

Jan Stránský proposed the following answer:
Hello,

> I think its not “part” of uniaxial strainer.

exactly. Because computation of it is not very straightforward. E.g. you can average "particle transverse strain" as newDistanceFromAxis/originalDistanceFromAxis-1. Then particles near the axis would be problematic because their original length is low (or possibly 0) and would corrupt the results.
Also it may happen that boundary particles "fly away", also corrupting the result.
So you can e.g. somehow choose a "central ring" and do computation on these particles.

Apart from computing transverse strain from uniaxial stress test, there is another option how to compute Poisson's ratio.
Poisson's ratio can also be computed by comparing Young's modulus (uniaxial stress modulus) to oedometric (uniaxial strain) modulus and/or bulk ("triaxial") modulus. See related discussion [1].

You can use both methods (transverse strain and another loading) and
compare the results of Poisson's ratio :-)

cheers
Jan

[1] https://answers.launchpad.net/yade/+question/670047

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