FN Archimer Export Format
PT J
TI Effect of particle size distribution on 3D packings of spherical particles
BT 
AF Taiebat, Mahdi
   Mutabaruka, Patrick
   Pellenq, Roland
   Radjai, Farhang
AS 1:1,2;2:2;3:2;4:2,3;
FF 1:;2:;3:;4:;
C1 Department of Civil Engineering, University of British Columbia - 6250 Applied Science Lane, Vancouver, BC, V6T 1Z4, Canada
   MIT-CNRS, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge MA, 02139, USA
   LMGC, CNRS-University of Montpellier, 163 rue Auguste Broussonnet, 34090 Montpellier, France
C2 UNIV BRITISH COLUMBIA, CANADA
   MIT, USA
   CNRS, FRANCE
TC 0
UR https://archimer.ifremer.fr/doc/00685/79692/82472.pdf
LA English
DT Article
AB We use molecular dynamics simulations of frictionless spherical particles to investigate a class of polydisperse granular materials in which the particle size distribution is uniform in particle volumes. The particles are assembled in a box by uniaxial compaction under the action of a constant stress. Due to the absence of friction and the nature of size distribution, the generated packings have the highest packing fraction at a given size span, defined as the ratio á of the largest size to the smallest size. We find that, up to á = 5, the packing fraction is a nearly linear function of á. While the coordination number is nearly constant due to the isostatic nature of the packings, we show that the connectivity of the particles evolves with á. In particular, the proportion of particles with 4 contacts represents the largest proportion of particles mostly of small size. We argue that this particular class of particles occurs as a result of the high stability of local configurations in which a small particle is stuck by four larger particles. 
PY 2017
SO EPJ Web of Conferences
SN 2100-014X
PU EDP Sciences
VL 140
DI 10.1051/epjconf/201714002030
ID 79692
ER

EF