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Article Dans Une Revue Physical Review E : Statistical, Nonlinear, and Soft Matter Physics Année : 2011

Average crack-front velocity during subcritical fracture propagation in a heterogeneous medium

Résumé

We study the average velocity of crack fronts during stable interfacial fracture experiments in a heterogeneous quasibrittle material under constant loading rates and during long relaxation tests. The transparency of the material (polymethylmethacrylate) allows continuous tracking of the front position and relation of its evolution to the energy release rate. Despite significant velocity fluctuations at local scales, we show that a model of independent thermally activated sites successfully reproduces the large-scale behavior of the crack front for several loading conditions.
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Dates et versions

hal-00701939 , version 1 (28-05-2012)

Identifiants

Citer

Olivier Lengliné, Renaud Toussaint, Jean Schmittbuhl, J.E. Elkhoury, J.-P. Ampuero, et al.. Average crack-front velocity during subcritical fracture propagation in a heterogeneous medium. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2011, 84, pp.036104. ⟨10.1103/PhysRevE.84.036104⟩. ⟨hal-00701939⟩
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