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Physics  1998 

Contact forces in regular 3D granular pile

DOI: 10.1016/S0378-4371(98)00648-7

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We present exact results for the contact forces in a three dimensional static piling of identical, stiff and frictionless spheres. The pile studied is a pyramid of equilateral triangular base (``stack of cannonballs'') with a FCC (face centered cubic) structure. We show in particular that, as for the two dimensional case, the pressure on the base of such a pile is uniform.


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