Disordered jammed packings of frictionless spheres

Details Disordered jammed packings of frictionless spheres Disordered jammed packings of frictionless spheres

2010-10-05

arxiv.org/abs/1010.0827v1

Soft Matter, 2010, 6, 2975-2981

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

10.1039/C001904F

At low volume fraction, disordered arrangements of frictionless spheres are found in un--jammed states unable to support applied stresses, while at high volume fraction they are found in jammed states with mechanical strength. Here we show, focusing on the hard sphere zero pressure limit, that the transition between un-jammed and jammed states does not occur at a single value of the volume fraction, but in a whole volume fraction range. This result is obtained via the direct numerical construction of disordered jammed states with a volume fraction varying between two limits, $0.636$ and $0.646$. We identify these limits with the random loose packing volume fraction $\rl$ and the random close packing volume fraction $\rc$ of frictionless spheres, respectively.

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