Citation

Liu C, Ferrero EE, Puosi F, Barrat JL, Martens K. Phys. Rev. Lett. 2016; 116(6): e065501.

Affiliation

CNRS, LIPHY, F-38000 Grenoble, France.

Copyright

(Copyright © 2016, American Physical Society)

DOI

10.1103/PhysRevLett.116.065501

PMID

26918998

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.

Language: en