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Re: [Question #686136]: Introducing a wide distribution of the value of a parameter in a contact law

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From: Robert Caulk <question686136@xxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 22 Nov 2019 16:22:56 -0000
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Question #686136 on Yade changed:
https://answers.launchpad.net/yade/+question/686136

    Status: Open => Answered

Robert Caulk proposed the following answer:
You can achieve this by looping on interaction physics and modifying the
values of interest [1]. Maybe it is obvious, but worth noting that you
need to do this *after* the interaction is created in yade.

for i in O.interactions:
    i.phys.normalAdhesion = randomlyDistributedVariable


It is also worth mentioning that JCFpmPhys (a type of cohesive model) already has this functionality for a weibull distribution of contact strengths [2]. 

Cheers,

Robert

[1] https://yade-dem.org/doc/yade.wrapper.html#yade.wrapper.CohFrictPhys
[2]https://yade-dem.org/doc/yade.wrapper.html#yade.wrapper.Ip2_JCFpmMat_JCFpmMat_JCFpmPhys.xSectionWeibullShapeParameter

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