Soliton attenuation and emergent hydrodynamics in fragile matter

Autores
Upadhyaya, N.; Gomez, Leopoldo Raimundo; Vitelli, V.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Disordered packings of soft grains are fragile mechanical systems that lose rigidity upon lowering the external pressure toward zero. At zero pressure, we find that any infinitesimal strain impulse propagates initially as a nonlinear solitary wave progressively attenuated by disorder. We demonstrate that the particle fluctuations generated by the solitary-wave decay can be viewed as a granular analogue of temperature. Their presence is manifested by two emergent macroscopic properties absent in the unperturbed granular packing: a finite pressure that scales with the injected energy (akin to a granular temperature) and an anomalous viscosity that arises even when the microscopic mechanisms of energy dissipation are negligible. Consistent with the interpretation of this state as a fluidlike thermalized state, the shear modulus remains zero. Further, we follow in detail the attenuation of the initial solitary wave, identifying two distinct regimes-an initial exponential decay, followed by a longer power-law decay-and suggest simple models to explain these two regimes.
Fil: Upadhyaya, N.. Universiteit Leiden; Países Bajos
Fil: Gomez, Leopoldo Raimundo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Vitelli, V.. Universiteit Leiden; Países Bajos
Materia
CONDENSED MATTER PHYSICS
NONLINEAR DYNAMICS
SOFT MATTER
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/94782
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Soliton attenuation and emergent hydrodynamics in fragile matterUpadhyaya, N.Gomez, Leopoldo RaimundoVitelli, V.CONDENSED MATTER PHYSICSNONLINEAR DYNAMICSSOFT MATTERhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Disordered packings of soft grains are fragile mechanical systems that lose rigidity upon lowering the external pressure toward zero. At zero pressure, we find that any infinitesimal strain impulse propagates initially as a nonlinear solitary wave progressively attenuated by disorder. We demonstrate that the particle fluctuations generated by the solitary-wave decay can be viewed as a granular analogue of temperature. Their presence is manifested by two emergent macroscopic properties absent in the unperturbed granular packing: a finite pressure that scales with the injected energy (akin to a granular temperature) and an anomalous viscosity that arises even when the microscopic mechanisms of energy dissipation are negligible. Consistent with the interpretation of this state as a fluidlike thermalized state, the shear modulus remains zero. Further, we follow in detail the attenuation of the initial solitary wave, identifying two distinct regimes-an initial exponential decay, followed by a longer power-law decay-and suggest simple models to explain these two regimes.Fil: Upadhyaya, N.. Universiteit Leiden; Países BajosFil: Gomez, Leopoldo Raimundo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; ArgentinaFil: Vitelli, V.. Universiteit Leiden; Países BajosAmerican Physical Society2014-03-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/94782Upadhyaya, N.; Gomez, Leopoldo Raimundo; Vitelli, V.; Soliton attenuation and emergent hydrodynamics in fragile matter; American Physical Society; Physical Review X; 4; 1; 26-3-2014; 1-112160-3308CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prx/abstract/10.1103/PhysRevX.4.011045info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevX.4.011045info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:11:55Zoai:ri.conicet.gov.ar:11336/94782instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:11:56.111CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Soliton attenuation and emergent hydrodynamics in fragile matter
title Soliton attenuation and emergent hydrodynamics in fragile matter
spellingShingle Soliton attenuation and emergent hydrodynamics in fragile matter
Upadhyaya, N.
CONDENSED MATTER PHYSICS
NONLINEAR DYNAMICS
SOFT MATTER
title_short Soliton attenuation and emergent hydrodynamics in fragile matter
title_full Soliton attenuation and emergent hydrodynamics in fragile matter
title_fullStr Soliton attenuation and emergent hydrodynamics in fragile matter
title_full_unstemmed Soliton attenuation and emergent hydrodynamics in fragile matter
title_sort Soliton attenuation and emergent hydrodynamics in fragile matter
dc.creator.none.fl_str_mv Upadhyaya, N.
Gomez, Leopoldo Raimundo
Vitelli, V.
author Upadhyaya, N.
author_facet Upadhyaya, N.
Gomez, Leopoldo Raimundo
Vitelli, V.
author_role author
author2 Gomez, Leopoldo Raimundo
Vitelli, V.
author2_role author
author
dc.subject.none.fl_str_mv CONDENSED MATTER PHYSICS
NONLINEAR DYNAMICS
SOFT MATTER
topic CONDENSED MATTER PHYSICS
NONLINEAR DYNAMICS
SOFT MATTER
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Disordered packings of soft grains are fragile mechanical systems that lose rigidity upon lowering the external pressure toward zero. At zero pressure, we find that any infinitesimal strain impulse propagates initially as a nonlinear solitary wave progressively attenuated by disorder. We demonstrate that the particle fluctuations generated by the solitary-wave decay can be viewed as a granular analogue of temperature. Their presence is manifested by two emergent macroscopic properties absent in the unperturbed granular packing: a finite pressure that scales with the injected energy (akin to a granular temperature) and an anomalous viscosity that arises even when the microscopic mechanisms of energy dissipation are negligible. Consistent with the interpretation of this state as a fluidlike thermalized state, the shear modulus remains zero. Further, we follow in detail the attenuation of the initial solitary wave, identifying two distinct regimes-an initial exponential decay, followed by a longer power-law decay-and suggest simple models to explain these two regimes.
Fil: Upadhyaya, N.. Universiteit Leiden; Países Bajos
Fil: Gomez, Leopoldo Raimundo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Vitelli, V.. Universiteit Leiden; Países Bajos
description Disordered packings of soft grains are fragile mechanical systems that lose rigidity upon lowering the external pressure toward zero. At zero pressure, we find that any infinitesimal strain impulse propagates initially as a nonlinear solitary wave progressively attenuated by disorder. We demonstrate that the particle fluctuations generated by the solitary-wave decay can be viewed as a granular analogue of temperature. Their presence is manifested by two emergent macroscopic properties absent in the unperturbed granular packing: a finite pressure that scales with the injected energy (akin to a granular temperature) and an anomalous viscosity that arises even when the microscopic mechanisms of energy dissipation are negligible. Consistent with the interpretation of this state as a fluidlike thermalized state, the shear modulus remains zero. Further, we follow in detail the attenuation of the initial solitary wave, identifying two distinct regimes-an initial exponential decay, followed by a longer power-law decay-and suggest simple models to explain these two regimes.
publishDate 2014
dc.date.none.fl_str_mv 2014-03-26
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/94782
Upadhyaya, N.; Gomez, Leopoldo Raimundo; Vitelli, V.; Soliton attenuation and emergent hydrodynamics in fragile matter; American Physical Society; Physical Review X; 4; 1; 26-3-2014; 1-11
2160-3308
CONICET Digital
CONICET
url http://hdl.handle.net/11336/94782
identifier_str_mv Upadhyaya, N.; Gomez, Leopoldo Raimundo; Vitelli, V.; Soliton attenuation and emergent hydrodynamics in fragile matter; American Physical Society; Physical Review X; 4; 1; 26-3-2014; 1-11
2160-3308
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prx/abstract/10.1103/PhysRevX.4.011045
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevX.4.011045
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.069144

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