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[Václav Šmilauer <eudoxos@xxxxxxxx>]

I would like to calibrate material parameters to match macroscopic
properties using uniaxial traction and later triaxial compression tests.
Is there some widely used, pre-generated sphere assmebly that has
properties such as isotropy and "reasonable" radii variance that could
be used? (Something like that should be part of Yade, I think).

If no, what procedures to you recommend to create such assembly? How
many sphere should I go for?

I will work soon on triax test which will have "true" hydrostatic
confinement (by using delaunay to detect the solid edge and applying
forces at relevant spheres) - that will solve the problem of restricted
dilatance for triax (right, Wenjie?).

Regards, Vaclav
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