yade-users team mailing list archive

[Luc Sibille <luc.sibille@xxxxxxxxxxxxxx>]

Below is a paper explaining of detect contact between ellipses in 2D:
http://www.geometrictools.com/Documentation/IntersectionOfEllipses.pdf

Maybe extents in 3D are possible, or I saw something about the distance 
between 2 ellipses in 3D in the list below:
http://www.geometrictools.com/Documentation/Documentation.html

   Luc

Václav S a écrit :
>> the second one is difficult, I think you need to create your own
>> element with its correlating constitutive models and a lot of coding
>> involved...
>>
> Yes, that would be quite complicated - think only contact detection of 2
> ellipsoids in 3d. I would suggest in that case using clumps (rigid
> aggregates) of 2 or more spheres that would overlap in such a way that
> the overall share would more or less approximate what you need.
> 
> For the different particle size: have a look at TriaxialTest, it
> generates spheres at random of diameter .5 and 1.5 IIRC.
> 
> Václav
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-- 
Luc Sibille, Université de Nantes - Laboratoire GeM, maître de conférence

Adresse/address:
IUT de Saint Nazaire - Département de Génie-Civil
58, rue Michel-Ange - BP 420
44606 Saint-Nazaire Cedex   France

Tel: +33 2 40 17 81 78     Fax: +33 2 40 17 81 60
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