eprintid: 1970
rev_number: 6
eprint_status: archive
userid: 56
dir: disk0/00/00/19/70
datestamp: 2013-11-29 11:52:17
lastmod: 2014-10-09 09:20:25
status_changed: 2013-11-29 11:52:17
type: article
metadata_visibility: show
creators_name: Carpinteri, Alberto
creators_name: Paggi, Marco
creators_id: 
creators_id: marco.paggi@imtlucca.it
title: A fractal interpretation of size-scale effects on strength, friction and fracture energy of faults 
ispublished: pub
subjects: TJ
divisions: CSA
full_text_status: none
abstract: Experimental results indicate that large faults involved in earthquakes possess low strength, low friction coefficient and high fracture energy, in comparison with data obtained according to small scale laboratory tests on the same material. The reasons for such an unexpected anomalous behaviour have been the subject of several researches in the past and are still under debate in the Scientific Community. In this note, we propose a unifying interpretation of these size-scale effects according to fractal geometry, which represents the proper mathematical framework for the analysis of the multi-scale properties of rough surfaces in contact. This contribution sheds a new light on the non-linear properties of friction and on the understanding the fundamental physics governing the scaling of the mechanical properties in geophysics from the laboratory to a planetary scale. 
date: 2009
date_type: published
publication: Chaos, Solitons and Fractals
volume: 39
number: 2
publisher: Elsevier
pagerange: 540 - 546
id_number: 10.1016/j.chaos.2007.01.075
refereed: TRUE
issn: 0960-0779
official_url: http://www.sciencedirect.com/science/article/pii/S096007790700197X
citation:   Carpinteri, Alberto and Paggi, Marco  A fractal interpretation of size-scale effects on strength, friction and fracture energy of faults.  Chaos, Solitons and Fractals, 39 (2).  540 - 546.  ISSN 0960-0779      (2009)