yade-users team mailing list archive

[chiara modenese <c.modenese@xxxxxxxxx>]

On 29 March 2010 12:35, Bruno Chareyre <bruno.chareyre@xxxxxxxxxxx> wrote:

> Hello all,
>
> Currently in Ig2_Box_Sphere_ScGeom, sphere-box contacts are seen as
> contacts between the sphere and another sphere twice bigger (the big one
> representing the box).
> I'd like to change that and make the fictious sphere the same size as the
> real one, so that box-sphere contacts will have the same stiffness that
> contacts between equal spheres (preserves somehow a symetry, I never knew
> why this factor 2).
>

Hi Bruno,

did you change your mind about this factor 2? If I am not wrong it is still
there. If we do not know where it comes from maybe we can just get rid of
it.

cheers, Chiara



>
> Please let me know if this change would create problems for you, and/or be
> prepared to see a small change in the rigidity of the boundaries in the
> triaxial test.
>
> Bruno
>
> --
> _______________
> 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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