2021/05/31 by Ishan Srivastava, Scott Alan Roberts, Scott A. Roberts +5
Engineering · Materials Science · Physics and Astronomy · Psychology · #Attribution #Condensed matter physics #Dispersity #Granular flow and fluidized beds #Hard spheres #Jamming #Law #License #Material Dynamics and Properties #Materials science #Physics #Political science #Polymer crystallization and properties #Psychology #SPHERES #Social psychology #Statistical physics #Thermodynamics #Volume fraction #cond-mat.soft
paper · pdf · doi:10.1103/physrevresearch.3.l032042
published as Phys. Rev. Research 3, 032042 (2021) · Accepted version; 5 pages, 4 figures
openalex publication_date 2021/08/13 · arxiv created 2021/08/16 · arxiv updated 2021/08/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
By generalizing a geometric argument for frictionless spheres, a model is proposed for the jamming density J of mechanically stable packings of bidisperse, frictional spheres. The monodisperse, s -dependent jamming density mono J ( s ) is the only input required in the model, where s is the coefficient of friction. The predictions of the model are validated by robust estimates of J obtained from computer simulations of up to 10 7 particles for a wide range of s , and size ratios up to 40:1. Although J varies nonmonotonically with the volume fraction of small spheres f s for all s , its maximum value J,max at an optimal f s max are both s dependent. The optimal f s max is characterized by a sharp transition in the fraction of small rattler particles.