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

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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https://hal.archives-ouvertes.fr/hal-02880608
Contributor : L2c Aigle <>
Submitted on : Thursday, June 25, 2020 - 10:15:30 AM
Last modification on : Tuesday, June 30, 2020 - 11:03:35 AM

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Misaki Ozawa, Ludovic Berthier, Giulio Biroli, Gilles Tarjus. Role of fluctuations in the yielding transition of two-dimensional glasses. Physical Review Research, 2020, pp.023203. ⟨10.1103/PhysRevResearch.2.023203⟩. ⟨hal-02880608⟩

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