We present results from a series of experiments on a granular medium sheared in a Couette geometry and show that their statistical properties can be computed in a quantitative way from the assumption that the resultant from the set of forces acting in the system performs a Brownian motion. The same assumption has been utilized, with success, to describe other phenomena, such as the Barkhausen effect in ferromagnets, and so the scheme suggests itself as a more general description of a wider class of driven instabilities.
%0 Journal Article
%1 baldassarri:118002
%A Baldassarri, A.
%A Dalton, F.
%A Petri, A.
%A Zapperi, S.
%A Pontuale, G.
%A Pietronero, L.
%D 2006
%I APS
%J Physical Review Letters
%K 2006 cnrbest5 experiments fluctuations friction granular model myown prl statistics stick-slip
%N 11
%P 118002
%T Brownian Forces in Sheared Granular Matter
%U http://link.aps.org/abstract/PRL/v96/e118002
%V 96
%X We present results from a series of experiments on a granular medium sheared in a Couette geometry and show that their statistical properties can be computed in a quantitative way from the assumption that the resultant from the set of forces acting in the system performs a Brownian motion. The same assumption has been utilized, with success, to describe other phenomena, such as the Barkhausen effect in ferromagnets, and so the scheme suggests itself as a more general description of a wider class of driven instabilities.
@article{baldassarri:118002,
abstract = {We present results from a series of experiments on a granular medium sheared in a Couette geometry and show that their statistical properties can be computed in a quantitative way from the assumption that the resultant from the set of forces acting in the system performs a Brownian motion. The same assumption has been utilized, with success, to describe other phenomena, such as the Barkhausen effect in ferromagnets, and so the scheme suggests itself as a more general description of a wider class of driven instabilities.},
added-at = {2006-10-17T19:20:31.000+0200},
author = {Baldassarri, A. and Dalton, F. and Petri, A. and Zapperi, S. and Pontuale, G. and Pietronero, L.},
biburl = {https://www.bibsonomy.org/bibtex/2f0e5fd0f0eba8d57eb8d2f0089ef7b9e/andreab},
eid = {118002},
interhash = {bda33ee7fdfab973b4ea22579aa0a79f},
intrahash = {f0e5fd0f0eba8d57eb8d2f0089ef7b9e},
journal = {Physical Review Letters},
keywords = {2006 cnrbest5 experiments fluctuations friction granular model myown prl statistics stick-slip},
number = 11,
numpages = {4},
pages = 118002,
publisher = {APS},
timestamp = {2007-03-21T18:37:10.000+0100},
title = {Brownian Forces in Sheared Granular Matter},
url = {http://link.aps.org/abstract/PRL/v96/e118002},
volume = 96,
year = 2006
}