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Shear- and vibration-induced order-disorder transitions in granular media
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Ciamarra, M. Pica, Coniglio, A., de Martino, D. and Nicodemi, Mario (2007) Shear- and vibration-induced order-disorder transitions in granular media. European Physical Journal E. Soft Matter, Vol.24 (No.4). pp. 411-415. doi:10.1140/epje/i2007-10256-6 ISSN 1292-8941.
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Official URL: http://dx.doi.org/10.1140/epje/i2007-10256-6
Abstract
By molecular dynamics simulations we investigate the order-disorder transitions induced in granular media by an applied drive combining vibrations and shear. As the steady state is attained, the pack is found in disordered configurations for comparatively high intensities of the drive; conversely, ordering and packing fractions exceeding the random close packing are found when vibrations and shear are weak. As forcing amplitudes get smaller, we find diverging time scales in the dynamics, as the system enters a jamming region. Under this perspective, our picture supports the intuition that externally applied forcing has, in driven granular media, a role similar to temperature in thermal systems.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry T Technology > TA Engineering (General). Civil engineering (General) Q Science > QC Physics |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | European Physical Journal E. Soft Matter | ||||
Publisher: | Springer | ||||
ISSN: | 1292-8941 | ||||
Official Date: | December 2007 | ||||
Dates: |
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Volume: | Vol.24 | ||||
Number: | No.4 | ||||
Number of Pages: | 5 | ||||
Page Range: | pp. 411-415 | ||||
DOI: | 10.1140/epje/i2007-10256-6 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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