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Phys Rev E. 2019 Feb;99(2-1):023002. doi: 10.1103/PhysRevE.99.023002.

Avalanche mixing and the simultaneous collapse of two media under uniaxial stress.

Author information

1
School of Civil Engineering, Chongqing University, 400044 Chongqing, People's Republic of China.
2
State Key Laboratory for Mechanical Behaviors of Materials, Xi'an Jiao Tong University, 710049 Xi'an, People's Republic of China.
3
Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, United Kingdom.
4
Departament de Física de la Matèria Condensada, Facultat de Física, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Catalonia.
5
State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, 400044 Chongqing, People's Republic of China.

Abstract

Avalanches in coal and sandstone samples under common uniaxial stress serve as a model for mixing of avalanche exponents in ceramics, multiferroics, and alloys. The two media are sandwiched together and subjected to common uniaxial stress using high- and low-stress compression. Each medium collapses individually through avalanches that often coincide with secondary avalanches into the other medium. The total avalanche time sequence allows a detailed investigation of the mixing by superposition and delayed coincidence. Correlations can be described by an inter-media Båth's law.

PMID:
30934264
DOI:
10.1103/PhysRevE.99.023002

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