Article (Scientific journals)
Compaction of anisotropic granular materials: Experiments and simulations
Lumay, Geoffroy; Vandewalle, Nicolas
2004In Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics, 70 (5, Pt 1), p. 51314
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Abstract :
[en] We present both experimental and numerical investigations of compaction in granular materials composed of rods. As a function of the particles size and with respect to the container diameter, we have observed large variations of the asymptotic packing volume fraction. The relevant parameter is the ratio between the rod length l and the tube diameter D. Even the compaction dynamics remains unchanged for various particle lengths, and a transition between 3d and 2d ordering for grain orientations is observed for l/D= 1. A toy model for the compaction of needles on a lattice is also proposed. This toy model gives a complementary view of our experimental results and leads to behaviors similar to experimental ones.
Disciplines :
Physics
Author, co-author :
Lumay, Geoffroy ;  Université de Liège - ULiège > Département de physique > Département de physique
Vandewalle, Nicolas  ;  Université de Liège - ULiège > Département de physique > Physique statistique
Language :
English
Title :
Compaction of anisotropic granular materials: Experiments and simulations
Publication date :
November 2004
Journal title :
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
ISSN :
1539-3755
eISSN :
1550-2376
Publisher :
American Physical Soc, College Pk, United States - Maryland
Volume :
70
Issue :
5, Pt 1
Pages :
51314
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 08 August 2009

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