title: Driving Rate Dependence of Avalanche Statistics and Shapes at the Yielding Transition.
abstract: We study stress time series caused by plastic avalanches in athermally sheared disordered materials. Using particle-based simulations and a mesoscopic elastoplastic model, we analyze system size and shear-rate dependence of the stress-drop duration and size distributions together with their average temporal shape. We find critical exponents different from mean-field predictions, and a clear asymmetry for individual avalanches. We probe scaling relations for the rate dependency of the dynamics and we report a crossover towards mean-field results for strong driving.
authors.affiliation: Université Grenoble Alpes, LIPHY, F-38000 Grenoble, France.|CNRS, LIPHY, F-38000 Grenoble, France.
authors.forename: Chen
authors.initials: C
authors.lastname: Liu
authors.affiliation: Université Grenoble Alpes, LIPHY, F-38000 Grenoble, France.|CNRS, LIPHY, F-38000 Grenoble, France.
authors.forename: Ezequiel E
authors.initials: EE
authors.lastname: Ferrero
authors.affiliation: Université Grenoble Alpes, LIPHY, F-38000 Grenoble, France.|CNRS, LIPHY, F-38000 Grenoble, France.|Ecole Normale Supérieure de Lyon, Laboratoire de Physique CNRS, 46 allée d'Italie, 69364 Lyon Cedex 7, France.
authors.forename: Francesco
authors.initials: F
authors.lastname: Puosi
authors.affiliation: Université Grenoble Alpes, LIPHY, F-38000 Grenoble, France.|CNRS, LIPHY, F-38000 Grenoble, France.
authors.forename: Jean-Louis
authors.initials: JL
authors.lastname: Barrat
authors.affiliation: Université Grenoble Alpes, LIPHY, F-38000 Grenoble, France.|CNRS, LIPHY, F-38000 Grenoble, France.
authors.forename: Kirsten
authors.initials: K
authors.lastname: Martens