Details

Autor(en) / Beteiligte

• Le Priol, Clément
• Chopin, Julien
• Le Doussal, Pierre
• Ponson, Laurent
• Rosso, Alberto

Titel

Universal Scaling of the Velocity Field in Crack Front Propagation

Ist Teil von

• Physical review letters, 2020-02, Vol.124 (6), p.065501-065501, Article 065501

Ort / Verlag

United States: American Physical Society

Erscheinungsjahr

2020

Link zum Volltext

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• The propagation of a crack front in disordered materials is jerky and characterized by bursts of activity, called avalanches. These phenomena are the manifestation of an out-of-equilibrium phase transition originated by the disorder. As a result avalanches display universal scalings which are, however, difficult to characterize in experiments at a finite drive. Here, we show that the correlation functions of the velocity field along the front allow us to extract the critical exponents of the transition and to identify the universality class of the system. We employ these correlations to characterize the universal behavior of the transition in simulations and in an experiment of crack propagation. This analysis is robust, efficient, and can be extended to all systems displaying avalanche dynamics.