Structure of marginally jammed polydisperse packings of frictionless spheres

Abstract

We model the packing structure of a marginally jammed bulk ensemble of polydisperse spheres using an extended granocentric mode explicitly taking into account rattlers. This leads to a relation- ship between the characteristic parameters of the packing, such as the mean number of neighbors and the fraction of rattlers, and the radial distribution function g(r). We find excellent agreement between the model predictions for g(r) and packing simulations as well as experiments on jammed emulsion droplets. The observed quantitative agreement opens the path towards a full structural characterization of jammed particle systems for imaging and scattering experiments.

submitted

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Cited by in corpus (6)

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• Oil-in-water microfluidics on the colloidal scale: new routes to self-assembly and glassy packings
• Unifying size-topology relations in random packings of dry adhesive polydisperse spheres