Random very loose packings (Articolo in rivista)

Type
Label
  • Random very loose packings (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Ciamarra, MP; Coniglio, A (2008)
    Random very loose packings
    in Physical review letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ciamarra, MP; Coniglio, A (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 101 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • \"[Ciamarra, Massimo Pica] Univ Naples 2, CNISM, I-81031 Aversa, CE, Italy; [Ciamarra, Massimo Pica] Univ Naples 2, Dept Informat Engn, I-81031 Aversa, CE, Italy; [Ciamarra, Massimo Pica; Coniglio, Antonio] Univ Naples Federico 2, Dipartimento Sci Fis, I-80129 Naples, Italy; [Coniglio, Antonio] CNR, INFM, I-80125 Naples, Italy (literal)
Titolo
  • Random very loose packings (literal)
Abstract
  • We measure the number Omega(phi) of mechanically stable states of volume fraction phi of a granular assembly under gravity. The granular entropy S(phi)=log Omega(phi) vanishes both at high density, at phi similar or equal to phi(rcp), and a low density, at phi similar or equal to phi(rvlp), where phi(rvlp) is a new lower bound we call random very loose pack. phi(rlp) is the volume fraction where the entropy is maximal. These findings allow for a clear explanation of compaction experiments and provide the first first-principle definition of the random loose volume fraction. In the context of the statistical mechanics approach to static granular materials, states with phi
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