Creep of a Fracture Line in Paper Peeling
School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.
Physical Review Letters, Volume 99, Issue 14
AbstractThe 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.
paper, fracture lines
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.