Skip to main content
Journal cover image

Jamming transition in non-spherical particle systems: pentagons versus disks

Publication ,  Journal Article
Zhao, Y; Barés, J; Zheng, H; Bester, CS; Xu, Y; Socolar, JES; Behringer, RP
Published in: Granular Matter
November 1, 2019

We investigate the jamming transition in a quasi-2D granular material composed of regular pentagons or disks subjected to quasistatic uniaxial compression. We report six major findings based on experiments with monodisperse photoelastic particles with static friction coefficient μ≈ 1. (1) For both pentagons and disks, the onset of rigidity occurs when the average coordination number of non-rattlers, Znr, reaches 3, and the dependence of Znr on the packing fraction ϕ changes again when Znr reaches 4. (2) Though the packing fractions ϕc1 and ϕc2 at these transitions differ from run to run, for both shapes the data from all runs with different initial configurations collapses when plotted as a function of the non-rattler fraction. (3) The averaged values of ϕc1 and ϕc2 for pentagons are around 1 % smaller than those for disks. (4) Both jammed pentagons and disks show Gamma distribution of the Voronoi cell area with same parameters. (5) The jammed pentagons have similar translational order for particle centers but slightly less orientational order for contacting pairs compared to jammed disks. (6) For jammed pentagons, the angle between edges at a face-to-vertex contact point shows a uniform distribution and the size of a cluster connected by face-to-face contacts shows a power-law distribution.

Duke Scholars

Published In

Granular Matter

DOI

EISSN

1434-7636

ISSN

1434-5021

Publication Date

November 1, 2019

Volume

21

Issue

4

Related Subject Headings

  • Fluids & Plasmas
  • 5107 Particle and high energy physics
  • 4017 Mechanical engineering
  • 4004 Chemical engineering
  • 0913 Mechanical Engineering
  • 0905 Civil Engineering
  • 0904 Chemical Engineering
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Zhao, Y., Barés, J., Zheng, H., Bester, C. S., Xu, Y., Socolar, J. E. S., & Behringer, R. P. (2019). Jamming transition in non-spherical particle systems: pentagons versus disks. Granular Matter, 21(4). https://doi.org/10.1007/s10035-019-0940-4
Zhao, Y., J. Barés, H. Zheng, C. S. Bester, Y. Xu, J. E. S. Socolar, and R. P. Behringer. “Jamming transition in non-spherical particle systems: pentagons versus disks.” Granular Matter 21, no. 4 (November 1, 2019). https://doi.org/10.1007/s10035-019-0940-4.
Zhao Y, Barés J, Zheng H, Bester CS, Xu Y, Socolar JES, et al. Jamming transition in non-spherical particle systems: pentagons versus disks. Granular Matter. 2019 Nov 1;21(4).
Zhao, Y., et al. “Jamming transition in non-spherical particle systems: pentagons versus disks.” Granular Matter, vol. 21, no. 4, Nov. 2019. Scopus, doi:10.1007/s10035-019-0940-4.
Zhao Y, Barés J, Zheng H, Bester CS, Xu Y, Socolar JES, Behringer RP. Jamming transition in non-spherical particle systems: pentagons versus disks. Granular Matter. 2019 Nov 1;21(4).
Journal cover image

Published In

Granular Matter

DOI

EISSN

1434-7636

ISSN

1434-5021

Publication Date

November 1, 2019

Volume

21

Issue

4

Related Subject Headings

  • Fluids & Plasmas
  • 5107 Particle and high energy physics
  • 4017 Mechanical engineering
  • 4004 Chemical engineering
  • 0913 Mechanical Engineering
  • 0905 Civil Engineering
  • 0904 Chemical Engineering