Avalanche localization and crossover scaling in amorphous plasticity.
We perform large-scale simulations of a two-dimensional lattice model for amorphous plasticity with random local yield stresses and long-range quadrupolar elastic interactions. We show that as the external stress increases towards the yielding phase transition, the scaling behavior of the avalanches crosses over from mean-field theory to a different universality class. This behavior is associated with strain localization, which significantly depends on the short-range properties of the interaction kernel.
ISI Foundation, Via Alassio 11/c, 10126, Torino, Italy.
Zoe
Z
Budrikis
ISI Foundation, Via Alassio 11/c, 10126, Torino, Italy and CNR-IENI, Via R. Cozzi 53, 20125, Milano, Italy.
Stefano
S
Zapperi