Structure and distribution of arches in shaken hard sphere deposits

We investigate the structure and distribution of arches formed by spherical, hard particles shaken in an external field after they come to rest. Arches (or bridges) are formed during a computer-simulated, non-sequential deposition of the spheres after each shaking cycle. We identify these arches by...

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Bibliographic Details
Published in:Physica A 2004-06, Vol.337 (3), p.428-442
Main Authors: Pugnaloni, Luis A., Barker, G.C.
Format: Article
Language:English
Subjects:
Arching
Granular materials
Hard spheres
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Summary:We investigate the structure and distribution of arches formed by spherical, hard particles shaken in an external field after they come to rest. Arches (or bridges) are formed during a computer-simulated, non-sequential deposition of the spheres after each shaking cycle. We identify these arches by means of a connectivity criterion and study their structural characteristics and spatial distribution. We find that neither the size distribution nor the shape of the arches is strongly affected by the packing fraction of the deposit. Conversely, the spatial distribution and orientation of the bridges do depend on the volume fraction occupied by the spheres.
ISSN:0378-4371
1873-2119
DOI:10.1016/j.physa.2004.02.004