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Line creep in paper peeling

Abstract : The dynamics of a “peeling front” or an elastic line is studied under creep (constant load) conditions. Our experiments show in most cases an exponential dependence of the creep velocity on the inverse force (mass) applied. In particular, the dynamical correlations of the avalanche activity are discussed here. We compare various avalanche statistics to those of a line with non-local elasticity, and study various measures of the experimental avalanche-avalanche and temporal correlations such as the autocorrelation function of the released energy and aftershock activity. From all these we conclude, that internal avalanche dynamics seems to follow “line depinning”-like behavior, in rough agreement with the depinning model. Meanwhile, the correlations reveal subtle complications not implied by depinning theory. Moreover, we also show how these results can be understood from a geophysical point of view.
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https://hal-insu.archives-ouvertes.fr/insu-00372100
Contributor : Pascale Talour <>
Submitted on : Tuesday, March 31, 2009 - 12:03:19 PM
Last modification on : Wednesday, October 14, 2020 - 4:14:01 AM

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Jari Rosti, Juha Koivisto, Paola Traversa, Xavier Illa, Jean Robert Grasso, et al.. Line creep in paper peeling. International Journal of Fracture, Springer Verlag, 2008, 151 (2), pp.281 à 287. ⟨10.1007/s10704-008-9258-7⟩. ⟨insu-00372100⟩

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