Creep of a fracture line in paper peeling

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 $\beta \sim 1.8\pm 0.1$. 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.

References in corpus (4)

• Statistical Models of Fracture
• Dynamics below the depinning threshold
• Creep motion of an elastic string in a random potential
• Dynamics of the peel front and the nature of acoustic emission during peeling of an adhesive tape

Cited by in corpus (6)

• Crackling dynamics in material failure as the signature of a self-organized dynamic phase transition
• Exactly solvable model of avalanches dynamics for Barkhausen crackling noise
• Creep dynamics of elastic manifolds via exact transition pathways
• Local dynamics of a randomly pinned crack front during creep and forced propagation: An experimental study
• The effect of thresholding on temporal avalanche statistics
• Relaxation of creep strain in paper