yade-users team mailing list archive

[Anton Gladky <gladky.anton@xxxxxxxxx>]

Well, the main idea for me was to create the destruction model, using very
simple formulas.
There are only torsion and stress formulas for the moment.




2009/10/5 Bruno Chareyre <bruno.chareyre@xxxxxxxxxxx>

> Hi Luc,
>
> The CohesiveFrictional contact law is very general, it includes normal,
> shear, bending, and torsion components (bending and torsion are purely
> elastic for now, it is no big deal to add a threshold for failure). You
> could start with this law and add missing features, or perhaps derive a new
> law from this one if you need much more sophistications.
>
> Bruno
>
>
> luc scholtes a écrit :
>
>> Hi Anton,
>>
>> Thank you for your answer. So, if I understand well, the RPM is quite
>> similar to the CohesiveFrictionalContactLaw? I don't grab all the idea.
>> Could you please be a bit more illustrative?
>>
>>
>>  Luc
>>
>>
>> 2009/9/29 Anton Gladky <gladky.anton@xxxxxxxxx <mailto:
>> gladky.anton@xxxxxxxxx>>
>>
>>    The idea is to create some particles "connected" (cohesive) with
>>    each other, if they are close to each other on the first stage of
>>    simulation.
>>    After that, if cohesive particle positions are too far or too
>>    close to each other, destruction occurs. And particles become like
>>    a simple granular media.
>>
>>
>>
>>    2009/9/29 luc scholtes <lscholtes63@xxxxxxxxx
>>    <mailto:lscholtes63@xxxxxxxxx>>
>>
>>        Hi all,
>>
>>        I currently start a new project on rock slope stability in
>>        open pit mines. I now know YADE for a while and I am sure it
>>        can be a great tool for that and I want to prove it to my
>>        supervisor.
>>
>>        I have seen that some work has been done on rock modelling (I
>>        saw that a RockParticleModel class has been introduced in the
>>        new release 0.20). I am still trying to understand what is
>>        written on that files but, honestly, I am a bit lost when I
>>        compare to what I did with granular materials
>>        (CapillaryCohesiveLaw ;) ).
>>
>>        The idea, for the moment, is to model some kind of a fractured
>>        rock mass within which particles can interact either in
>>        clusters with a cohesive behaviour (rock blocks) or between
>>        clusters with a contacting law representative of a rock joint
>>        (maybe with an artefact to control the roughness). In
>>        addition, maybe it would be useful to deal with spheres such
>>        as they are a part of a lattice with no collision detection
>>        and no inertia or something like that (?).
>>
>>        Maybe some of you have already think about it and I would be
>>        grateful for any advices and suggestions.
>>
>>
>>        Regards
>>
>>          Luc
>>
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>
>
> --
>
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