yade-users team mailing list archive

[chiara modenese <c.modenese@xxxxxxxxx>]

2010/4/16 Václav Šmilauer <eudoxos@xxxxxxxx>

> > I want to run a simple test of two balls in displacement control. Is
> > there any engine for this purpose? I see in ForceContainer a function
> > called move.. Is that one I should use for? Can I run it say every
> > time step?
> Use TranslationEngine or JumpChangeSe3. You can use move as well, but
> you have to set it at every step; besides, it will not set particle's
> velocity.
>
> I am attaching script that I use(d) for plotting 1-1 graphs, take it as
> inspiration, it is rather hairy. I wanted to add something like this to
> some yade standard module (since every time you develop new contact law,
> you want to test it on 1-1 configuration first), but I did not (and will
> not probably) have time for that. It uses the JumpChangeSe3 engine.
>
> It runs 3 scenarios, the one you might need is distProx perhaps.
>

Hi Vaclav,

I am looking at your script one-one.py. In fact, it is quite hairy (for me,
at least). May I ask you how did you check the case of 'pure shear'? I see a
mode called 'yShear' where it seems you apply a displacement in the shear
direction. Should not we also have a normal applied force once we test
shear?

Thanks, Chiara

>
> HTH, Vaclav
>
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