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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 open access

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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.

Title:Force attractor in confined comminution of granular materials.
Open access status:An open access version is available from UCL Discovery
Publisher version:http://dx.doi.org/10.1103/PhysRevLett.104.108001
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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