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arXiv · 1912.06021

Role of fluctuations in the yielding transition of two-dimensional glasses

Misaki Ozawa·Ludovic Berthier·Giulio Biroli·Gilles Tarjus
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Abstract

We numerically study yielding in two-dimensional glasses which are generated with a very wide range of stabilities by swap Monte-Carlo simulations and then slowly deformed at zero temperature. We provide strong numerical evidence that stable glasses yield via a nonequilibrium discontinuous transition in the thermodynamic limit. A critical point separates this brittle yielding from the ductile one observed in less stable glasses. We find that two-dimensional glasses yield similarly to their three-dimensional counterparts but display larger sample-to-sample disorder-induced fluctuations, stronger finite-size effects, and rougher spatial wandering of the observed shear bands. These findings strongly constrain effective theories of yielding.

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Misaki Ozawa, Ludovic Berthier, Giulio Biroli, Gilles Tarjus. 2020-05-22. Role of fluctuations in the yielding transition of two-dimensional glasses. https://doi.org/10.1103/physrevresearch.2.023203

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