yade-users team mailing list archive

[Bruno Chareyre <bruno.chareyre@xxxxxxxxxxx>]

Ah... Thanks Luc, I only repeated the same thing (put aside the 
suggestion to implement this in trunk ;)).

Bruno

Luc Sibille a écrit :
> Hi Nejib,
>
> When I saw Franck in Djerba, I gave him the modification I have done 
> on an quite old version of Yade to do what you want. Have you got 
> these modify files? If yes, they should contain the answer to your 
> questions.
>
> Actually, I don't really understand your question, the idea here is 
> that there is nothing to do. Just put the walls as dynamic objects, 
> give them a mass and lock their rotation degree of freedom and the 
> stress control will be naturally made through the engine NewtonDampedLaw.
>
> Best,
>
> Luc
>
> nejib hadda a écrit :
> > Hi Bruno,
> >
> > Actually, I switched to forces applied on walls instead of walls
> > translation because I want that my wall  moves under a stress load equal
> > to some d_Sig= X - f(Sig1,Sig2,Sig3) where X contstant stress that do
> > not changes while iterating.
> > I don't see how to make this work using wall translation ('max_vel' for
> > stress control).
> >
> > Any suggestion ?
> >
> >
> > Le jeudi 17 juin 2010 à 15:48 +0200, Bruno Chareyre a écrit :
> > > Walls have mass, like other bodies.
> > > It is not very clear for me what you want to do Nejib. What is the 
> > > difference with the stressController engine?
> > > "Applying a force" means adding a vector to the current body force 
> > > vector, it doesn't need or imply anything in terms of dynamic or mass.
> > >
> > > Bruno
> > >
> > >
> > > Anton Gladky a écrit :
> > > > 2010/6/17 nejib hadda <nejib.hadda@xxxxxxxxxxx 
> > > > <mailto:nejib.hadda@xxxxxxxxxxx>>
> > > >
> > > >     .....I want to know  if the walls need to be dynamic when applying
> > > >     forces on them?
> > > >
> > > >
> > > > Walls are NOT dynamic in any case. They do not have a mass. You can 
> > > > only move them, they cant move by themselves because of interaction.
> > > >
> > > > ------------------------------------------------------------------------ 
> > > >
> > > >
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--
_______________
Bruno Chareyre
Associate Professor
Grenoble INP
Lab. 3SR
BP 53 - 38041, Grenoble cedex 9 - France
Tél : 33 4 56 52 86 21
Fax : 33 4 76 82 70 43
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