Laboratoire Charles Coulomb UMR 5221 CNRS/UM2 (L2C)


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

Auteur(s): Ozawa M., Berthier L., Biroli Giulio, Tarjus Gilles

(Article) Publié: Physical Review Research, vol. p.023203 (2020)
Texte intégral en Openaccess : arxiv

Ref HAL: hal-02880608_v1
Ref Arxiv: 1912.06021
DOI: 10.1103/PhysRevResearch.2.023203
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote

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.