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[Luc Sibille <question688439@xxxxxxxxxxxxxxxxxxxxx>]

Question #688439 on Yade changed:
https://answers.launchpad.net/yade/+question/688439

Luc Sibille proposed the following answer:
Dear Elham,

Please note that the two papers [1] and [2] (below) are based on the 
contact law you want to use.
It has been shown in paper [1] that the peak friction angle does not 
depend on alphaKr when alphaKr is sufficiently high. Maybe you are in 
this latter case...?

Regards,
Luc

[1] Discrete numerical modeling of loose soil with spherical particles 
and interparticle rolling friction
RA Hosn, L Sibille, N Benahmed, B Chareyre
Granular matter 19 (1), 4
http://hal.univ-grenoble-alpes.fr/hal-01951842/document

[2] Quantitative prediction of discrete element models on complex 
loading paths
Luc Sibille, Pascal Villard, Félix Darve, Rodaina Aboul Hosn
International Journal for Numerical and Analytical Methods in Geomechanics
43(5): 858-887
https://hal.archives-ouvertes.fr/hal-02059431/document


-- 
Luc Sibille
Université Grenoble Alpes / IUT1 de Grenoble
Laboratoire 3SR: Sols, Solides, Structures, Risques

Tel lab.: +33 (0)4 76 82 63 48
Tel IUT: +33 (0)4 76 82 53 36

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