%0 Journal Article
%T Friction-Controlled Entropy-Stability Competition in Granular Systems
%+ Shanghai Jiao Tong University [Shanghai]
%+ Laboratoire Charles Coulomb (L2C)
%+ University of Cambridge [UK] (CAM)
%A Sun, X.
%A Kob, Walter
%A Blumenfeld, R.
%A Tong, H.
%A Wang, Y.
%A Zhang, J.
%< avec comité de lecture
%Z L2C:21-003
%@ 0031-9007
%J Physical Review Letters
%I American Physical Society
%V 125
%P 268005
%8 2021
%D 2021
%Z 2007.14145
%R 10.1103/PhysRevLett.125.268005
%Z Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph]
%Z Physics [physics]/Condensed Matter [cond-mat]/Statistical Mechanics [cond-mat.stat-mech]
%Z Physics [physics]/Condensed Matter [cond-mat]/Disordered Systems and Neural Networks [cond-mat.dis-nn]Journal articles
%X Using cyclic shear to drive a two dimensional granular system, we determine the structural char-acteristics for different inter-particle friction coefficients. These characteristics are the result of acompetition between mechanical stability and entropy, with the latter’s effect increasing with fric-tion. We show that a parameter-free maximum-entropy argument alone predicts an exponential cell order distribution, with excellent agreement with the experimental observation. We show thatfriction only tunes the mean cell order and, consequently, the exponential decay rate and the pack-ing fraction. We further show that cells, which can be very large in such systems, are short-lived,implying that our systems are liquid-like rather than glassy..
%G English
%2 https://hal.science/hal-03117915/document
%2 https://hal.science/hal-03117915/file/2007.14145.pdf
%L hal-03117915
%U https://hal.science/hal-03117915
%~ CNRS
%~ L2C
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UM-2015-2021