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Re: [Question #678679]: Rectangular bar discretised with bonded spherical elements with periodic B.C.'s


Question #678679 on Yade changed:

    Status: Open => Needs information

Jan Stránský requested more information:
Hello Nik,

> *!YADE newbie !*

welcome :-)

> I have tried my luck with examples of periodic B.C.'s given in GitHub
repository of YADE, but failed to achieve anything useful.

Please provide a MWE (minimum working example) [1] (unfortunately the wiki page is down currently) such that we know what you have tried already, we can tried your solution and basically see what exactly you are using.
Also please always try to be specific enough in the description of the problem, in this case:
- which examples have you tried (please ideally provide full patrhs to the examples or links to source code on github/gitlab)?
- what does "useful" mean? What did you get from the simulation and what you expected?

> I want to impose periodic boundary conditions (particles ... are
repeated ... will be copied and placed ...)

Just a note, I personally call the yade implementation "periodic contact detection" rather then "periodic boundary conditions". The particles are not copied / repeated, but the collider (contact detection) knows about the *periodic images* of the particles.
Furthermore, the particles can have arbitrary position (outside the periodic cell), which needs to be taken into account for postprocessing.


[1] https://yade-dem.org/wiki/Howtoask

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