yade-users team mailing list archive

[Shiu Wenjie <wen-jie.shiu@xxxxxxxxxxx>]

Hi, Luc

I did exactly this kind of simulation procedures as you mentioned in the 
question! Yade is almost enable to do the simulation as you want, one 
need just to program it!

Instead of saving the file in scene.xml format, i saved only the 
position and the radius (in a *.txt file) of each element at the end of 
the consolidation, and i stopped the simulation! I called this step as 
"numerical specimen generation"!!

Then reload the saving files (positions and radii of the elements), one 
can make simple compression (or tension) test, triaxial test..etc!!

To do that, i have three different triaxialtest_version -- 
triaxial_for_specimen_generation, triaxial_for_unaixial, 
triaxial_for_triaxialtest!!

This may not be the best solution, but it works(and it might be quite 
similar to the previous procedure done in SDEC)!!

regards

wenjie


Luc SIBILLE wrote:
> Hi,
>
>  First, I am discovering Yade, so I think I will have a lot of questions...
>
> By looking the structure of the file called scene.xml (created, for
> instance, by the generator TriaxialTest), I understand that in the same
> file are defined  the media (the bodies, here spheres) with the
> geometrical and physical (or mechanical) properties and the simulation
> that we want to perform (with is specific parameters).
>
> My problem is the following one: a given simulation is linked here to a
> given media, so can we do different simulations from a unique given media
> ? I give an example here after based on a triaxial test:
>
> I perform an isotropic compression, after I stop the simulation and save
> the result. I don't go further because I want to do different things with
> this consolidated granular assembly.
> Then I want to do a compression and an extension both from the state of
> the media after the isotropic compression. So I perform a first simulation
> (the compression) by using the consolidated granular assembly (the result
> saved), then I perform a second simulation (the extension) by using the
> consolidated granular assembly (always the same result saved).
> I imagine that I cannot do that with Yade since the kind of simulation is
> saved in the scene.xml file and reused (here the simulation "isotropic
> compression" is saved and reused whereas I want to perform a "compression"
> or an "extension").
>
> Am I right ? What would be the different steps (in few words) to perform
> the simulations described above?
>
>   Best,
>
>    Luc
>
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>
>   

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