yade-users team mailing list archive

[Anton Gladky <gladky.anton@xxxxxxxxx>]

Ok, thanks!



2010/4/30 Václav Šmilauer <eudoxos@xxxxxxxx>

> > The interesting thing, what  I have recently discovered, is that it is
> > better to use as less possible friction coefficient between acting
> > part of the press (facets) and specimen (better 0). So, we imitate
> > greased by oil the surface of the press.
> >
> > In this case we get the most stable results. If the friction
> > coefficient is large (for example, 0.4-0.5), results are changing
> > randomly, depending on size specimen, number of grains etc...
> >
> > What do you think about that?
>
> It does have big influence; in examples/concrete/uniax.py, only
> displacement along the strain axis is prescribed, while all other
> (including rotations) are kept free (frictionless support, if you wish).
>
> UniaxialStrainer is quite flexible in this
> (
> https://www.yade-dem.org/sphinx/yade.wrapper.html#yade.wrapper.UniaxialStrainer.blockDisplacementsand blockRotations).
>
>
> v
>
>
>
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