Article (Scientific journals)
Bernal random loose packing through freeze-thaw cycling
Ludewig, François; Vandewalle, Nicolas; Dorbolo, Stéphane et al.
2015In Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
Peer Reviewed verified by ORBi
 

Files


Full Text
PREfreezeThawCycling.pdf
Publisher postprint (1.26 MB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Granular; packing; phase transition
Abstract :
[en] We study the effect of freeze-thaw cycling on the packing fraction of equal spheres immersed in water. The water located between the grains experiences a dilatation during freezing and a contraction during melting. After several cycles, the packing fraction converges to a particular value η∞ = 0.595 independently of its initial value η0. This behavior is well reproduced by numerical simulations. Moreover, the numerical results allow one to analyze the packing structural configuration. With a Vorono ̈ı partition analysis, we show that the piles are fully random during the whole process and are characterized by two parameters: the average Vorono ̈ı volume μv (related to the packing fractionη)andthestandarddeviationσv ofVorono ̈ıvolumes.Thefreeze-thawdrivingmodifythevolumestandard deviation σv to converge to a particular disordered state with a packing fraction corresponding to the random loose packing fraction ηBRLP obtained by Bernal during his pioneering experimental work. Therefore, freeze-thaw cycling is found to be a soft and spatially homogeneous driving method for disordered granular materials.
Disciplines :
Physics
Author, co-author :
Ludewig, François ;  Université de Liège > Département de physique > Physique statistique
Vandewalle, Nicolas  ;  Université de Liège > Département de physique > Physique statistique
Dorbolo, Stéphane  ;  Université de Liège > Département de physique > Physique statistique
Pakpour, Maryam ;  Université de Liège > Département de physique > Physique expér. de la matière molle et des syst. complexes
Lumay, Geoffroy ;  Université de Liège > Département de physique > Physique expér. de la matière molle et des syst. complexes
Language :
English
Title :
Bernal random loose packing through freeze-thaw cycling
Publication date :
2015
Journal title :
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
ISSN :
1539-3755
eISSN :
1550-2376
Publisher :
American Physical Society, College Park, United States - Maryland
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 19 August 2015

Statistics


Number of views
82 (7 by ULiège)
Number of downloads
1 (1 by ULiège)

Scopus citations®
 
4
Scopus citations®
without self-citations
3
OpenCitations
 
4

Bibliography


Similar publications



Contact ORBi