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[Chareyre <question197520@xxxxxxxxxxxxxxxxxxxxx>]

Question #197520 on Yade changed:
https://answers.launchpad.net/yade/+question/197520

Chareyre proposed the following answer:
This function is only a frontend to TriaxialTest, and many parameters are hardcoded in it, so that that it is less flexible than the triaxial test itself.
Among hidden parameters in the confining pressure, this one gives the initial overlaps.
In short, you confine the packing under, let's say 10kPa (I would have to check the precise value), then you remove the confining pressure and replace it by gravity, which is much smaller in magnitude (it seems). Suddenly, elastic energy is released and the particles jump away.

If I were you, I would directly use Triaxial scripts to generate the
packing. It is not difficult and you have many example scripts. It would
let you define the loading history more precisely.

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