New question #694134 on Yade:
https://answers.launchpad.net/yade/+question/694134

Hi,
I am using CohFricMat[1] and CohFrictPhys_CohesionMoment 
law(useIncrementalForm=True,always_use_moment_law=True) for my simulations. I 
referred to many good papers which seem to use the same contact law (I'm not 
sure). And I got some doubts as follows:

For example, in paper [2] and [3], they introduced the rolling resistance 
(rolling stiffness Kr and dimensionless rolling coefficien eta are defined in 
the paper), so I guess it is the CohFricMat that was used. But I didn't find 
any parameters about twisting (i.e., Ktw and etaTwist). Did they use another 
material? Or did they also use CohFricMat but just not active the twisting? If 
so, my question is how to introduce only rolling but no twisting when using 
CohFricMat.

Thanks
Leonard

[1]https://yade-dev.gitlab.io/trunk/yade.wrapper.html?highlight=cohfrictmat#yade.wrapper.CohFrictMat

[2]Tejchman, J., J. Kozicki, and D. Leśniewska. "Discrete simulations of shear 
zone patterning in sand in earth pressure problems of a retaining wall." 
International Journal of Solids and Structures 48.7-8 (2011): 1191-1209. 

[3]Hosn, R. A., Sibille, L., Benahmed, N., & Chareyre, B. (2017). Discrete 
numerical modeling of loose soil with spherical particles and interparticle 
rolling friction. Granular matter, 19(1), 4.



-- 
You received this question notification because your team yade-users is
an answer contact for Yade.

_______________________________________________
Mailing list: https://launchpad.net/~yade-users
Post to     : [email protected]
Unsubscribe : https://launchpad.net/~yade-users
More help   : https://help.launchpad.net/ListHelp

Reply via email to