yade-users team mailing list archive

[Luc Sibille <luc.sibille@xxxxxxxxxxxxxx>]

Chiara Modenese a écrit :
> Hi Bruno, 
>
> concerning the Poisson's ratio you said..
>
> "For Poisson, the name is only due to the fact that Poisson's ratio depends mostly on ks/kn. But there is no constant - not even linear - relation between the micro and the macro in that case."
>
> I am just a little confused since I was reading in the following paper:
>
> "Numerical simulation of drained triaxial test using 3D discrete element modeling", Belheine, Plassiard, Donzé, Darve, Seridi
>
> that kn influence the macro parameter E of the sample, but that there is also a relationship between alpha=ks/kn and nu (macro).
> Probably I am interpreting something in the wrong way. Could you clarify me on this point, please? Is there a dependence somehow?
>
> Thanks a lot.
>
> Chiara

Hi, I don't really understand your question... explanation given by 
Bruno and your citation from the paper are not antagonistic:

kn mostly influence the macroscopic Young modulus,
and the ratio ks/kn mostly influence the Poisson's ratio.

Luc

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--
Luc Sibille

Université de Nantes - Laboratoire GeM UMR CNRS

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