Question #698594 on Yade changed:
https://answers.launchpad.net/yade/+question/698594
Status: Open => Needs information
Jan Stránský requested more information:
Hello,
> I carried out ...
a MWE [1] would be great, most likely necessary, to provide serious answer.
Or at least more detailed information on "triaxial compression tests" (loading
scenario, load values, what is prescribed (stress, strain), .... )
> the two cases use ... same strain rate (I think)
you should know, not think
> the two cases use ... the same of sample size
definitely not.
For the rigid walls, the sample dimension is a true dimension.
For the size of periodic cell, it just an arbitrary sample out of **infinite**
medium.
If you "repeat" the periodic cell (like "2x2x2" or "3x3x3" sample), you should
get the same results as for the one cell.
> but is it normal to have such a big difference?
it might be normal, or not :-)
> Or did I miss some factors which can also lead to the difference?
friction of walls?
Cheers
Jan
[1] https://www.yade-dem.org/wiki/Howtoask
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