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Re: [Question #698605]: The distribution of contact normal direction and contact normal force are not uniform after isotropic consolidation

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Zhicheng Gao <question698605@xxxxxxxxxxxxxxxxxxxxx>
Date: Sun, 05 Sep 2021 10:20:49 -0000
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Question #698605 on Yade changed:
https://answers.launchpad.net/yade/+question/698605

    Status: Answered => Open

Zhicheng Gao is still having a problem:
>how do you define "almost the same"?
The difference is not more than 0.5 times the average value, but it can be seen from the figure that the maximum value is three times the average value

>since the other semicircle is symmetric, is it worth to change a
"standard" function? what are the results of the original
utils.plotDirections? same? better? worse?

The result of the original  utils.plotDirections of course is the same

>I do not have access, can you provide the formula / method description?
Despite the apparent randomness in variation of contact forces, regular trends emerge when normal and tangential components of interparticle forces are averaged over groups of contacts with similar orientations.

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