yade-users team mailing list archive

[Bruno Chareyre <bruno.chareyre@xxxxxxxxxxx>]

> That reminds me, Bruno: could you make something like
> TriaxialStressController but using MetaBody::{cellMin,cellMax} with
> extra/PeriodicInsertionSortCollider instead of the 6 walls?
>
>   
Wait a minute!! You mean you implemented periodic boundary conditions?!

> Ideally, it would have the same interface as the current
> TriaxialStressController (or make an abstract class that defines that)
> and one could choose which to use (in TriaxialTest, for instance).
>
>   
If I understand, the only question, appart from writing the code, is how 
to define the stress in X,Y,Z (could be done using Love-Weber stress 
computed on contacts, or perhaps you did something already?) and the 
stiffness of the sample.
How to control the stress, is there some adjustable X,Y,Z lengths of the 
period, somewhere?

> Have a look at scripts/test/periodic-compress.py and the
> PeriodicIsoCompressor class -- it has much less features (and ambitions)
> that full-fledged stress controller,I just use it to make dense periodic
> packing.
>
>   
Interesting, I'll have to give a look.

Bruno


> Cheers, Vaclav
>
>
>
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