Creep of a Fracture Line in Paper Peeling

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© 2007 American Physical Society (APS). This is the accepted version of the following article: Koivisto, J. & Rosti, J. & Alava, Mikko J. 2007. Creep of a Fracture Line in Paper Peeling. Physical Review Letters. Volume 99, Issue 14. 145504/1-4. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.99.145504, which has been published in final form at http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.99.145504.

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Journal Title

Journal ISSN

Volume Title

School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2007

Major/Subject

Mcode

Degree programme

Language

en

Pages

145504/1-4

Series

Physical Review Letters, Volume 99, Issue 14

Abstract

The slow motion of a crack line is studied via an experiment in which sheets of paper are split into two halves in a “peel-in-nip” (PIN) geometry under a constant load, in creep. The velocity-force relation is exponential. The dynamics of the fracture line exhibits intermittency, or avalanches, which are studied using acoustic emission. The energy statistics is a power law, with the exponent β∼1.8±0.1. Both the waiting times between subsequent events and the displacement of the fracture line imply complicated stick-slip dynamics. We discuss the correspondence to tensile PIN tests and other similar experiments on in-plane fracture and the theory of creep for elastic manifolds.

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Keywords

paper, fracture lines

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Citation

Koivisto, J. & Rosti, J. & Alava, Mikko J. 2007. Creep of a Fracture Line in Paper Peeling. Physical Review Letters. Volume 99, Issue 14. 145504/1-4. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.99.145504.