期刊
PHYSICAL REVIEW LETTERS
卷 116, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.116.065501
关键词
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资金
- ERC [ADG20110209]
- IUF
- ANR [ANR-14-CE32-0005]
- National Science Foundation (NSF) [PHY11-25915]
- Rhone-Alpes region [CPER07-13 CIRA]
- Equip@Meso project [ANR-10-EQPX-29-01]
- Agence Nationale de la Recherche (ANR) [ANR-14-CE32-0005] Funding Source: Agence Nationale de la Recherche (ANR)
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 shearrate 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.
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