Reference : Stability limit of a granular monolayer
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/30092
Stability limit of a granular monolayer
English
Dorbolo, Stéphane mailto [Université de Liège - ULiège > Département de physique > Physique statistique >]
May-2005
European Physical Journal E -- Soft Matter
Springer
17
1
77-81
Yes (verified by ORBi)
International
1292-8941
New York
[en] A granular monolayer is composed by spherical grains on a horizontal plate. The plate is then tilted until the monolayer breaks down. This critical angle has been measured for different widths and heights of the rectangular monolayer. The highest critical angles are found when one of these two characteristic lengths is less than about 30 bead diameters. When the polydispersity is less than one percent, the monolayer may be stable till angles close to 90 degrees. Arches induce large critical angles. On the other hand, for a large and high monolayer, the critical angle saturates towards a lower value. This angle is related to the static friction of a grain on the plate. A model based on the block dynamics is proposed to describe the behavior of the avalanche angle as a function of the size of the monolayer and the polydispersity of the beads.
http://hdl.handle.net/2268/30092
10.1140/epje/i2004-10110-5

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