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Message #11792
Re: [Question #271097]: Cohesive model description in Yade
Question #271097 on Yade changed:
https://answers.launchpad.net/yade/+question/271097
Status: Open => Answered
Bruno Chareyre proposed the following answer:
Hi Alexander,
Arguably, the documentation of Law2_ScGeom6D_CohFrictPhys_CohesionMoment is short (did you read it [1]) but it actually answers your questions.
>how cohesion forse depends on destination [distance?] between particles
Exactly like in the non-cohesive model, linearly.
>formulas for cohesion and non-cohesion forces
there is no such distinction. There is a contact force, bounded by
values computed based on friction and/or cohesion parameters. The
details are in the doc.
>when cohesion bond breaks
It breaks when contact force exceeds the bounds mentionned above, by
definition.
You may check Bourrier2013 where some more equations are given.
Regards
Bruno
[1] https://yade-
dem.org/doc/yade.wrapper.html#yade.wrapper.Law2_ScGeom6D_CohFrictPhys_CohesionMoment
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