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dc.contributor.author
Santos, Juan Enrique
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dc.contributor.author
Ravazzoli, Claudia Leonor
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dc.contributor.author
Carcione, Jose M.
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dc.date.available
2024-08-07T11:46:41Z
dc.date.issued
2004-06
dc.identifier.citation
Santos, Juan Enrique; Ravazzoli, Claudia Leonor; Carcione, Jose M.; A model for wave propagation in a composite solid matrix saturated by a single-phase fluid; Journal of Animal Ecology; Journal of the Acoustical Society of America; 115; 6; 6-2004; 2749-2760
dc.identifier.issn
0001-4966
dc.identifier.uri
http://hdl.handle.net/11336/241971
dc.description.abstract
This paper presents a theory to describe wave propagation in a porous medium composed of twosolids saturated by a single-phase fluid for spatially variable porosity. This problem has beenpreviously solved for constant porosity when one of the solids is ice or clay, but that model is notuseful for most realistic situations. The equations for variable porosity are derived from the virtualwork principle, where the generalized coordinates are identified as the displacements of the twosolid phases and a new variable associated with the relative fluid flow, whose divergence is thechange in fluid content. The generalized forces are the fluid pressure and combinations of the stresstensor of each solid phase and the fluid pressure. The Lagrangian equations of motion are derivedfor the isotropic case and a theorem on the existence and uniqueness of their solution is given. Theplane wave analysis reveals the existence of three compressional and two shear waves. The theoryis applied to wave propagation in shaley sandstones showing that phase velocities of the faster P andS waves agree very well with experimental data for varying porosity and clay content. A simulationthrough a plane interface separating two frozen sandstones of different ice contents is presented.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Journal of Animal Ecology
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Wave propagation
dc.subject
Composite porous matrix
dc.subject
Weakly coupled solids
dc.subject
Variable porosity
dc.subject.classification
Matemática Aplicada
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dc.subject.classification
Matemáticas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
A model for wave propagation in a composite solid matrix saturated by a single-phase fluid
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-08-05T13:55:27Z
dc.identifier.eissn
1520-8524
dc.journal.volume
115
dc.journal.number
6
dc.journal.pagination
2749-2760
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Santos, Juan Enrique. Universidad de Buenos Aires. Facultad de Ingeniería. Instituto del Gas y del Petróleo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Ravazzoli, Claudia Leonor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
dc.description.fil
Fil: Carcione, Jose M.. Istituto Nazionale di Oceanografia e di Geofisica Sperimentale; Italia
dc.journal.title
Journal of the Acoustical Society of America
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1121/1.1710500
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pubs.aip.org/asa/jasa/article-abstract/115/6/2749/545949/A-model-for-wave-propagation-in-a-composite-solid?redirectedFrom=fulltext
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