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[Jérôme Duriez <question692199@xxxxxxxxxxxxxxxxxxxxx>]

Question #692199 on Yade changed:
https://answers.launchpad.net/yade/+question/692199

    Status: Open => Answered

Jérôme Duriez proposed the following answer:
Hello,

Please do not mix 2 questions into 1. Some remarks considering your
second one:

DEM is a simulation method being dynamic by nature (Cundall & Strack,
1979). As such, having a stable structure at every moment (i.e. a
quasistatic evolution) requires extra care from the user.

If you're compressing an initial cloud with very few particles, it's probably even more difficult to ensure permanent quasi-staticity and "smooth" macro-curves:
- going from a cloud to a solid-like packing is a quite dramatic process between two very different states
- with very few particles, macro-curves can certainly be much more affected by discrete events on 1 or 2 (or ..) particles

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