yade-dev team mailing list archive

[luc scholtes <lscholtes63@xxxxxxxxx>]

Sure, you are totally right Vaclav!

I'll try to do something with some graphs for CohesiveFrictionalPM asap.

Cheers

  Luc

2010/10/7 Václav Šmilauer <eudoxos@xxxxxxxx>

> Hi fellows,
>
> I received the following mail yesterday from a geological engineer:
>
> > I recently found your software Yade on the internet,
> > which really arouse my interest. I downloaded it and
> > tried to learn it, but encountered with some questions,
> > and the most inconvenience is that there is no detailed
> > introduction about those constitutive laws used in Yade,
> > and I am wondering that if you could show me exactly what
> > kind of laws they are, the equations and detailed instruction
> > of them would help me to recogonize them and understand how
> > they work, and I would really appreciate that.
>
> What would you reply to such a question? (seriously)
>
> Looking at the documentation at
> https://www.yade-dem.org/sphinx/yade.wrapper.html#lawfunctor you might see
> that its state is miserable. Therefore I would like to ask authors of the
> respective contact laws to write documentation on them; it should mention
> at least:
>
> 1. The mathematical formulation of the model, or a reference to a paper
> which was _rigorously_ followed. Most models do not entail more than 10-20
> formulas and it is not such a big pain to write them.
> 2. For what kind of materials is the model supposed to be used.
> 3. Its limitations such as instabilities in corner cases, how well was it
> tested.
>
> Do not think documentation is unimportant. Since there are people outside
> academia using Yade (and there will be more of them in short time), then
> documentation is plain necessity. If there is agreement, I can add an
> "experimental" (or "undoc" or ...) feature (disabled by default), which
> would make compile stuff that is not documented or tested properly.
>
> I am not excluding myself, the concrete law is not much documented either.
>
> Please help Yade.
>
> Cheers, v
>
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