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Force attractor in confined comminution of granular materials.

Ben-Nun, O; Einav, I; Tordesillas, A; (2010) Force attractor in confined comminution of granular materials. Physical Review Letters , 104 (10) , Article 108001 . 10.1103/PhysRevLett.104.108001. Green and gold open access

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Abstract

We reveal a novel attractor in the space of contact forces that bounds the behavior of granular materials during confined comminution. The attractor is reached asymptotically as the porosity reduces and the grain size distribution attains an ultimate power law scaling. The ultimate distribution of the contact forces follows a clear log-normal distribution, distinctively different from previous observations in uncrushable systems. Supporting evidence comes both from comprehensive discrete element simulations and a theoretical Apollonian model.

Type:Article
Title:Force attractor in confined comminution of granular materials.
Location:US
Open access status:An open access publication. A version is also available from UCL Discovery.
DOI:10.1103/PhysRevLett.104.108001
Publisher version:http://dx.doi.org/10.1103/PhysRevLett.104.108001
Language:English
Additional information:© 2010 The American Physical Society
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Civil, Environmental and Geomatic Engineering

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