yade-users team mailing list archive

[Anton Gladky <gladky.anton@xxxxxxxxx>]

Ok, thanks for suggestions!

One more question (hopefully, the last for this topic ;) ), do you block
boundary particles from another side of specimen from motion?

______________________________

Anton Gladkyy


2010/5/5 Václav Šmilauer <eudoxos@xxxxxxxx>

> > But I have a question, how do you do tension-tests?
> > I understand, that it is not a usual test for mining rocks, concretes
> > and other similar materials, and I have some doubts, how to simulate
> > it.
> > Using hexagonal packing, there is no "gap" between spheres, where it
> > is possible to place a facet.
> Hi Anton, it is very common for concrete (ductile fracture). I use
> UniaxialStrainer the same as for compression, just setting strainRate>0.
> UniaxialStrainer displaces boundary particles, which solves the problem
> of gluing particles to supports, since there are no supports.
>
> Tensile tests are much more senitive to strain rate and dynamic effects
> in general, be careful with that (I use .1 of the compression rate).
>
> Also, you can pre-determine localization by using dogbone (hyperboloid)
> specimen, as in examples/concrete/uniax.py.
>
> HTH, Vaclav
>
>
>
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