Jamming of frictional spheres and random loose packing

By L. Silbert. 2010

278 citations recorded by the source corpus.

The role of the friction coefficient, μ, on the jamming properties of disordered, particle packings is studied using computer simulations. Compressed, soft-sphere packings are brought towards the jamming transition—the point where a packing loses mechanical stability—by decreasing the packing fraction. The values of the packing fraction at the jamming transition, ϕμc, gradually decrease from the random close packing point for zero friction, to a value coincident with random loose packing as the friction coefficient is increased over several orders of magnitude. This is accompanied by a decrease in the coordination number at the jamming transition, zμc, which varies from approximately six to four with increasing friction. Universal power law scaling is observed in the pressure and coordination number as a function of distance from the generalised, friction-dependent jamming point. Various power laws are also reported between the ϕμc, zμc, and μ. Dependence on preparation history of the packings is also investigated.

Subfields: Biomedical Engineering, Computational Mechanics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/fb5e1b18cef2e2f15d18b8b6f954fbbaf2ddea9e

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomedical Engineering

1. M. Cristina Marchetti
2. Dapeng Bi
3. S. Plimpton
4. 'Etienne Fodor
5. Le Yan

In Computational Mechanics

1. Jie Zhang
2. Bulbul Chakraborty
3. Dapeng Bi
4. S. Plimpton
5. Dan S. Bolintineanu
6. Gary S. Grest
7. F. Pierce
8. Robert P. Behringer

In Materials Chemistry

1. S. Plimpton
2. M. Manning
3. Dan S. Bolintineanu
4. Gary S. Grest
5. F. Pierce
6. M. Cristina Marchetti
7. Dapeng Bi
8. J. Lechman

Citations in the corpus

• Jamming by shear (2011, background): “, the nature of the jamming transition for frictional grains is less clea”
• Gas migration regimes and outgassing in particle-rich suspensions (2015, unknown): “At the random close packing, the percentage of particles in contact with each other is at its highest (for a randomly packed suspension), and even suspensions of frictionless particles develop a yield strength [21, 25, 26].”
• Particle dynamics modeling methods for colloid suspensions (2014, background): “More complex potentials that also include friction effects [201] and inter-particle adhesion surface forces [110,145] can also be included.”
• Motility-driven glass and jamming transitions in biological tissues (2015, background): “However, it would be possible to add a frictional force between cells proportional to the length of the edge shared between two cells, and we know from previous work on particulate glasses that these localized frictions can change the location of jamming/glass transition and the nature of spatial co”