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Akademický článek
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Akademický článek
The role of gravity or pressure and contact stiffness in granular rheology
Autor: Abhinendra Singh, Vanessa Magnanimo, Kuniyasu Saitoh, Stefan Luding
Publikováno v: New Journal of Physics, Vol 17, Iss 4, p 043028 (2015)
The steady-state shear rheology of granular materials is investigated in slow quasistatic and inertial flows. The effect of gravity (thus the local pressure) and the often-neglected contact stiffness are the focus of this study. A series of particle
Externí odkaz: https://doaj.org/article/680bc2ca4fcb411d8ff055f111e3e022
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3
Avalanche precursors in a frictional model
Autor: Jean-Christophe Géminard, Baptiste Blanc, Axelle Amon
Publikováno v: Physical Review E
Physical Review E, 2017, 96 (3), pp.033004. ⟨10.1103/physreve.96.033004⟩
APS March Meeting 2019
APS March Meeting 2019, Mar 2019, Boston (MA), United States
Physical Review E, American Physical Society (APS), 2017, 96, pp.033004
Avalanche Dynamics and Precursors of Catastrophic Events
Avalanche Dynamics and Precursors of Catastrophic Events, Feb 2019, Les Houches, France
Workshop Avalanche Dynamics and precursors of catastrophic events
Workshop Avalanche Dynamics and precursors of catastrophic events, Feb 2019, Les Houches, France, France
HAL
International audience; We present a one-dimensional numerical model based on elastically coupled sliders on a frictional incline of variable tilt. This very simple approach makes possible to study the precursors to the avalanche and to provide a rat
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a575cfb3e934925bdcc5f285540c9c93
https://hal.science/hal-01512586
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4
Average balance equations, scale dependence, and energy cascade for granular materials
Autor: Riccardo Artoni, Patrick Richard
Publikováno v: Physical Review E
Physical Review E, American Physical Society (APS), 2015, 91, pp.E32202. ⟨10.1103/PhysRevE.91.032202⟩
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2015, 91, pp.032202
A new averaging method linking discrete to continuum variables of granular materials is developed and used to derive average balance equations. Its novelty lies in the choice of the decomposition between mean values and fluctuations of properties whi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc4acea341dbf78b315265221cc6292d
https://doi.org/10.1103/physreve.91.032202
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5
Self-organized magnetic particles to tune the mechanical behavior of a granular system
Autor: Jonathan Barés, Dong Wang, Robert Behringer, Meredith Cox
Publikováno v: EPL-Europhysics Letters
EPL-Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2016, 115 (6), pp.64003-64003. ⟨10.1209/0295-5075/115/64003⟩
Above a certain density a granular material jams. This property can be controlled by either tuning a global property, such as the packing fraction or by applying shear strain, or at the micro-scale by tuning grain shape, inter-particle friction or ex
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa4439cdc6f41c17b026159e364513b3
https://hal.archives-ouvertes.fr/hal-01394287/file/Art_Self-organized_magnetic_particles_Cox_al_2016.pdf
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6
Effective Wall Friction in Wall-Bounded 3D Dense Granular Flows
Autor: Patrick Richard, Riccardo Artoni
We report numerical simulations on granular shear flows confined between two flat but frictional sidewalls. Novel regimes differing by their strain localization features are observed. They originate from the competition between dissipation at the sid
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3134aa96786add82d3d3244f8552794
https://hal.archives-ouvertes.fr/hal-01205169/file/Artoni2015.pdf
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7
Initiation of immersed granular avalanches
Autor: Kenichi Soga, Farhang Radjai, Jean-Yves Delenne, Patrick Mutabaruka
Publikováno v: Physical Review E : Statistical, Nonlinear, and Soft Matter Physics
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2014, 89 (5), ⟨10.1103/PhysRevE.89.052203⟩
International audience; By means of coupled molecular dynamics-computational fluid dynamics simulations, we analyze the initiation of avalanches in a granular bed of spherical particles immersed in a viscous fluid and inclined above its angle of repo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5dd4c4dc1848f5b3cd5f5ecf9746144c
https://hal.archives-ouvertes.fr/hal-02093034
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8
Tsunami generated by a granular collapse down a rough inclined plane
Autor: Olivier Kimmoun, Sylvain Viroulet, Alban Sauret
Publikováno v: EPL-Europhysics Letters
EPL-Europhysics Letters, 2014, 105, pp.34004. ⟨10.1209/0295-5075/105/34004⟩
EPL, vol 105, iss 3
EPL-Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2014, 105, pp.34004. ⟨10.1209/0295-5075/105/34004⟩
EPL (Europhysics Letters), vol 105, iss 3
Viroulet, S; Sauret, A; & Kimmoun, O. (2014). Tsunami generated by a granular collapse down a rough inclined plane. EPL, 105(3). doi: 10.1209/0295-5075/105/34004. UC Santa Barbara: Retrieved from: http://www.escholarship.org/uc/item/6gq909gt
International audience; In this Letter, we experimentally investigate the collapse of initially dry granular media into water and the subsequent impulse waves. We systematically characterize the influence of the slope angle and the granular material
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e7a958982b922162d3ba29eed9cf152
https://hal.science/hal-00952499/document
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9
Insights on the local dynamics induced by thermal cycling in granular matter
Autor: Baptiste Percier, Nicolas Taberlet, Thibaut Divoux
Publikováno v: EPL-Europhysics Letters
EPL-Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2013, 104 (2), pp.24001. ⟨10.1209/0295-5075/104/24001⟩
EPL-Europhysics Letters, 2013, 104 (2), pp.24001. ⟨10.1209/0295-5075/104/24001⟩
In this letter, we report results on the effect of temperature variations on a granular assembly through Molecular Dynamic simulations of a 2D granular column. Periodic dilation of the grains are shown to perfectly mimic such thermal cycling, and all
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c4020039f5b423a6a9ee0f6d0549d75
https://hal.archives-ouvertes.fr/hal-01112409/document
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10
Air invasion in a granular layer immersed in a fluid: morphology and dynamics
Autor: Jean-Christophe Géminard, Valérie Vidal, Germán Varas
Publikováno v: GRANULAR MATTER
Artículos CONICYT
CONICYT Chile
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We investigate the morphology and dynamics of the region invaded by air injected at the bottom of an immersed granular bed. Previous experimental results point out the formation of a fluidized zone with a parabolic shape which does not depend, in the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd778091f05ca84f848ec07bb9b02bd1
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