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@ARTICLE{BarSinai:276160,
author = {Bar-Sinai, Yohai and Spatschek, Robert and Brener, Efim and
Bouchbinder, Eran},
title = {{V}elocity-strengthening friction significantly affects
interfacial dynamics, strength and dissipation},
journal = {Scientific reports},
volume = {5},
issn = {2045-2322},
address = {London},
publisher = {Nature Publishing Group},
reportid = {FZJ-2015-06633},
pages = {7841 -},
year = {2015},
abstract = {Frictional interfaces abound in natural and man-made
systems, yet their dynamics are not well-understood. Recent
extensive experimental data have revealed that
velocity-strengthening friction, where the steady-state
frictional resistance increases with sliding velocity over
some range, is a generic feature of such interfaces. This
physical behavior has very recently been linked to slow
stick-slip motion. Here we elucidate the importance of
velocity-strengthening friction by theoretically studying
three variants of a realistic friction model, all featuring
identical logarithmic velocity-weakening friction at small
sliding velocities, but differ in their higher velocity
behaviors. By quantifying energy partition (e.g. radiation
and dissipation), the selection of interfacial rupture
fronts and rupture arrest, we show that the presence or
absence of strengthening significantly affects the global
interfacial resistance and the energy release during
frictional instabilities. Furthermore, we show that
different forms of strengthening may result in events of
similar magnitude, yet with dramatically different
dissipation and radiation rates. This happens because the
events are mediated by rupture fronts with vastly different
propagation velocities, where stronger
velocity-strengthening friction promotes slower rupture.
These theoretical results may have significant implications
on our understanding of frictional dynamics.},
cin = {PGI-2},
ddc = {000},
cid = {I:(DE-Juel1)PGI-2-20110106},
pnm = {144 - Controlling Collective States (POF3-144)},
pid = {G:(DE-HGF)POF3-144},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000347978300002},
pubmed = {pmid:25598161},
doi = {10.1038/srep07841},
url = {https://juser.fz-juelich.de/record/276160},
}