Document Detail

Effect of rolling on dissipation in fault gouges.
MedLine Citation:
PMID:  17025622     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Sliding and rolling are two outstanding deformation modes in granular media. The first one induces frictional dissipation whereas the latter one involves deformation with negligible resistance. Using numerical simulations on two-dimensional shear cells, we investigate the effect of the grain rotation on the energy dissipation and the strength of granular materials under quasistatic shear deformation. Rolling and sliding are quantified in terms of the so-called Cosserat rotations. The observed spontaneous formation of vorticity cells and clusters of rotating bearings may provide an explanation for the long standing heat flow paradox of earthquake dynamics.
F Alonso-Marroquín; I Vardoulakis; H J Herrmann; D Weatherley; P Mora
Publication Detail:
Type:  Journal Article     Date:  2006-09-20
Journal Detail:
Title:  Physical review. E, Statistical, nonlinear, and soft matter physics     Volume:  74     ISSN:  1539-3755     ISO Abbreviation:  Phys Rev E Stat Nonlin Soft Matter Phys     Publication Date:  2006 Sep 
Date Detail:
Created Date:  2006-10-09     Completed Date:  2007-01-08     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101136452     Medline TA:  Phys Rev E Stat Nonlin Soft Matter Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  031306     Citation Subset:  -    
ESSCC, The University of Queensland, Qld. 4068, Brisbane, Australia.
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