Influence of metallic inclusions on the electromechanical response of ferroelectric ceramics

Autores
Bottero, Cristian José; Idiart, Martín Ignacio
Año de publicación
2014
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Theoretical estimates are given for the overall dissipative response of ferroelectric ceramics with random dispersions of metallic inclusions under arbitrary loading histories. The fer- roelectric behavior of the matrix is described via a stored energy density and a dissipation potential in accordance with the theory of generalized standard materials. An implicit time- discretization scheme is used to generate a variational representation of the overall response in terms of a single incremental potential. Estimates are then generated by constructing se- quentially laminated microgeometries of particulate type whose overall incremental potential can be computed exactly. Because they are realizable, by construction, these estimates are guaranteed to conform with any material constraints, to satisfy all pertinent bounds, and to exhibit the required convexity properties with no duality gap. Sample results for isotropic composites are reported and discussed.
Facultad de Ingeniería
Materia
Ingeniería Aeronáutica
histéresis
Cerámica
tecnología de materiales
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/55402
Acceder
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repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Influence of metallic inclusions on the electromechanical response of ferroelectric ceramicsBottero, Cristian JoséIdiart, Martín IgnacioIngeniería AeronáuticahistéresisCerámicatecnología de materialesTheoretical estimates are given for the overall dissipative response of ferroelectric ceramics with random dispersions of metallic inclusions under arbitrary loading histories. The fer- roelectric behavior of the matrix is described via a stored energy density and a dissipation potential in accordance with the theory of generalized standard materials. An implicit time- discretization scheme is used to generate a variational representation of the overall response in terms of a single incremental potential. Estimates are then generated by constructing se- quentially laminated microgeometries of particulate type whose overall incremental potential can be computed exactly. Because they are realizable, by construction, these estimates are guaranteed to conform with any material constraints, to satisfy all pertinent bounds, and to exhibit the required convexity properties with no duality gap. Sample results for isotropic composites are reported and discussed.Facultad de Ingeniería2014-11info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionObjeto de conferenciahttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/55402enginfo:eu-repo/semantics/altIdentifier/isbn/978-950-34-1152-0info:eu-repo/semantics/altIdentifier/url/http://www.aero.ing.unlp.edu.ar/caia/Actas-CAIA3/19.pdfinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T16:47:11Zoai:sedici.unlp.edu.ar:10915/55402Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 16:47:11.319SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Influence of metallic inclusions on the electromechanical response of ferroelectric ceramics
title Influence of metallic inclusions on the electromechanical response of ferroelectric ceramics
spellingShingle Influence of metallic inclusions on the electromechanical response of ferroelectric ceramics
Bottero, Cristian José
Ingeniería Aeronáutica
histéresis
Cerámica
tecnología de materiales
title_short Influence of metallic inclusions on the electromechanical response of ferroelectric ceramics
title_full Influence of metallic inclusions on the electromechanical response of ferroelectric ceramics
title_fullStr Influence of metallic inclusions on the electromechanical response of ferroelectric ceramics
title_full_unstemmed Influence of metallic inclusions on the electromechanical response of ferroelectric ceramics
title_sort Influence of metallic inclusions on the electromechanical response of ferroelectric ceramics
dc.creator.none.fl_str_mv Bottero, Cristian José
Idiart, Martín Ignacio
author Bottero, Cristian José
author_facet Bottero, Cristian José
Idiart, Martín Ignacio
author_role author
author2 Idiart, Martín Ignacio
author2_role author
dc.subject.none.fl_str_mv Ingeniería Aeronáutica
histéresis
Cerámica
tecnología de materiales
topic Ingeniería Aeronáutica
histéresis
Cerámica
tecnología de materiales
dc.description.none.fl_txt_mv Theoretical estimates are given for the overall dissipative response of ferroelectric ceramics with random dispersions of metallic inclusions under arbitrary loading histories. The fer- roelectric behavior of the matrix is described via a stored energy density and a dissipation potential in accordance with the theory of generalized standard materials. An implicit time- discretization scheme is used to generate a variational representation of the overall response in terms of a single incremental potential. Estimates are then generated by constructing se- quentially laminated microgeometries of particulate type whose overall incremental potential can be computed exactly. Because they are realizable, by construction, these estimates are guaranteed to conform with any material constraints, to satisfy all pertinent bounds, and to exhibit the required convexity properties with no duality gap. Sample results for isotropic composites are reported and discussed.
Facultad de Ingeniería
description Theoretical estimates are given for the overall dissipative response of ferroelectric ceramics with random dispersions of metallic inclusions under arbitrary loading histories. The fer- roelectric behavior of the matrix is described via a stored energy density and a dissipation potential in accordance with the theory of generalized standard materials. An implicit time- discretization scheme is used to generate a variational representation of the overall response in terms of a single incremental potential. Estimates are then generated by constructing se- quentially laminated microgeometries of particulate type whose overall incremental potential can be computed exactly. Because they are realizable, by construction, these estimates are guaranteed to conform with any material constraints, to satisfy all pertinent bounds, and to exhibit the required convexity properties with no duality gap. Sample results for isotropic composites are reported and discussed.
publishDate 2014
dc.date.none.fl_str_mv 2014-11
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dc.language.none.fl_str_mv eng
language eng
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dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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