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Title: Jamming in Systems Composed of Frictionless Ellipse-Shaped Particles

Abstract

We study numerically frictionless ellipse packings versus the aspect ratio alpha, and find that the jamming transition is fundamentally different from that for spherical particles. The normal mode spectra possess two gaps and three distinct branches over a range of alpha. The energy from deformations along modes in the lowest-energy branch increases quartically, not quadratically. The quartic modes cause novel power-law scaling of the static shear modulus and their number matches the deviation from isostaticity. These results point to a new critical point at alpha>1 that controls jamming of aspherical particles.

Authors:
;  [1];  [2];  [3]
  1. Martin Fisher School of Physics, Brandeis University, Mail Stop 057, Waltham, Massachusetts 02454-9110 (United States)
  2. Department of Physics, Yale University, New Haven Connecticut 06520-8120 (United States)
  3. Department of Mechanical Engineering, Yale University, New Haven, Connecticut 06520-8284 (United States)
Publication Date:
OSTI Identifier:
21347005
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 102; Journal Issue: 25; Other Information: DOI: 10.1103/PhysRevLett.102.255501; (c) 2009 The American Physical Society; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ASPECT RATIO; DEFORMATION; PARTICLES; SPECTRA; SPHERICAL CONFIGURATION; CONFIGURATION; DIMENSIONLESS NUMBERS

Citation Formats

Mailman, Mitch, Chakraborty, Bulbul, Schreck, Carl F, O'Hern, Corey S, and Department of Physics, Yale University, New Haven Connecticut 06520-8120. Jamming in Systems Composed of Frictionless Ellipse-Shaped Particles. United States: N. p., 2009. Web. doi:10.1103/PHYSREVLETT.102.255501.
Mailman, Mitch, Chakraborty, Bulbul, Schreck, Carl F, O'Hern, Corey S, & Department of Physics, Yale University, New Haven Connecticut 06520-8120. Jamming in Systems Composed of Frictionless Ellipse-Shaped Particles. United States. https://doi.org/10.1103/PHYSREVLETT.102.255501
Mailman, Mitch, Chakraborty, Bulbul, Schreck, Carl F, O'Hern, Corey S, and Department of Physics, Yale University, New Haven Connecticut 06520-8120. Fri . "Jamming in Systems Composed of Frictionless Ellipse-Shaped Particles". United States. https://doi.org/10.1103/PHYSREVLETT.102.255501.
@article{osti_21347005,
title = {Jamming in Systems Composed of Frictionless Ellipse-Shaped Particles},
author = {Mailman, Mitch and Chakraborty, Bulbul and Schreck, Carl F and O'Hern, Corey S and Department of Physics, Yale University, New Haven Connecticut 06520-8120},
abstractNote = {We study numerically frictionless ellipse packings versus the aspect ratio alpha, and find that the jamming transition is fundamentally different from that for spherical particles. The normal mode spectra possess two gaps and three distinct branches over a range of alpha. The energy from deformations along modes in the lowest-energy branch increases quartically, not quadratically. The quartic modes cause novel power-law scaling of the static shear modulus and their number matches the deviation from isostaticity. These results point to a new critical point at alpha>1 that controls jamming of aspherical particles.},
doi = {10.1103/PHYSREVLETT.102.255501},
url = {https://www.osti.gov/biblio/21347005}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 25,
volume = 102,
place = {United States},
year = {2009},
month = {6}
}