Artículo
Universal features of the stick-slip dynamics of an intruder moving through a confined granular medium
Pugnaloni, Luis Ariel
; Carlevaro, Carlos Manuel
; Kozlowski, Ryan; Zheng, Hu; Kondic, Lou; Socolar, Joshua E. S.
Fecha de publicación:
04/2022
Editorial:
American Physical Society
Revista:
Physical Review E: Statistical, Nonlinear and Soft Matter Physics
ISSN:
2470-0045
e-ISSN:
2470-0053
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Experiments and simulations of an intruder dragged by a spring through a two-dimensional annulus of granular material exhibit robust force fluctuations. At low packing fractions ( ϕ < ϕ 0 ), the intruder clears an open channel. Above ϕ 0 , stick-slip dynamics develop, with an average energy release that is independent of the particle-particle and particle-base friction coefficients but does depend on the width W of the annulus and the diameter D of the intruder. A simple model predicts the dependence of ϕ 0 on W and D , allowing for a data collapse for the average energy release as a function of ϕ / ϕ 0 . These results pose challenges for theories of mechanical failure in amorphous materials.
Palabras clave:
GRANULAR MATERIALS
,
JAMMING
,
GRANULAR FLOWS
,
CREEP
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Articulos(IFLYSIB)
Articulos de INST.FISICA DE LIQUIDOS Y SIST.BIOLOGICOS (I)
Articulos de INST.FISICA DE LIQUIDOS Y SIST.BIOLOGICOS (I)
Citación
Pugnaloni, Luis Ariel; Carlevaro, Carlos Manuel; Kozlowski, Ryan; Zheng, Hu; Kondic, Lou; et al.; Universal features of the stick-slip dynamics of an intruder moving through a confined granular medium; American Physical Society; Physical Review E: Statistical, Nonlinear and Soft Matter Physics; 105; 4; 4-2022; 1-5
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