http://www.cnr.it/ontology/cnr/individuo/prodotto/ID88954
Source of low friction in fragmenting granular shear flow (Contributo in atti di convegno)
- Type
- Label
- Source of low friction in fragmenting granular shear flow (Contributo in atti di convegno) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
- Alternative label
Deganutti, A.M., Davies, T.R., McSaveney, M.J (2010)
Source of low friction in fragmenting granular shear flow
in Geogically Active, IAEG, Auckland, New Zealand, 5-10 September 2010
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Deganutti, A.M., Davies, T.R., McSaveney, M.J (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume
- Geologically Active (literal)
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Davies, T.R.: University of Canterbury, New Zealand
McSaveney, M.J.: Geological and Nuclear Sciences, Wellington, New Zealand (literal)
- Titolo
- Source of low friction in fragmenting granular shear flow (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn
- 978-0-415-60034-7 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#curatoriVolume
- Williams et al. (eds) (literal)
- Abstract
- We report laboratory experiments and numerical simulations thereof which
show similar reductions in frictional resistance when fragmentation occurs in dry comminut-
ing granular shear flow, in the absence of any mechanism for reducing friction except that of
grain comminution. These results, together with the ubiquitous occurrence of comminution
in association with low-friction geological phenomena, suggest that fragmentation is both
a sufficient and a necessary condition for low friction in granular shear. In the numerical
simulations a low damping factor was required to generate realistic results. This indicates that
most of the fracture surface energy utilised in comminution is recycled to the system as free
energy, in agreement with experimental data. (literal)
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