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[Jan Stránský <question206415@xxxxxxxxxxxxxxxxxxxxx>]

Question #206415 on Yade changed:
https://answers.launchpad.net/yade/+question/206415

    Status: Open => Answered

Jan Stránský proposed the following answer:
Hello Chiara,

as far as I know the derivation, it is applicable to both convex and
non-convex shapes. The derivation itself (i.e. not necessariy  all derived
equations) is also usable with clumps.
Could you write what equations do yo refer to? For example I do not have
access to the article of Thornton :-)

cheers
Jan


2012/12/18 Chiara Modenese <question206415@xxxxxxxxxxxxxxxxxxxxx>

> Question #206415 on Yade changed:
> https://answers.launchpad.net/yade/+question/206415
>
>     Status: Solved => Open
>
> Chiara Modenese changed the question status:
> Hi,
>
> Concerning the computation of stress tensor and the question above I
> would like to know if the general definition of average stress tensor
> (e.g. Thornton, 2000; Bagi, 1996) holds true for clumps of particles
> (provided that the branch vector is correctly defined as previously
> discussed). In the paper by Bagi (1996) the definition is obtained for
> grains of arbitrary _convex_ shape. Do you know if the theory is also
> valid for grains of concave shape?
>
> Thanks for opinion.
> Chiara
>
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