Influence of metallic inclusions on the electromechanical response of ferroelectric ceramics

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 accordan...

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Autores principales: Bottero, Cristian José, Idiart, Martín Ignacio
Formato: Objeto de conferencia
Lenguaje:Inglés
Publicado: 2014
Materias:
Ingeniería Aeronáutica
histéresis
Cerámica
tecnología de materiales
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/55402
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-55402
record_format dspace
spelling I19-R120-10915-554022023-09-21T17:36:10Z http://sedici.unlp.edu.ar/handle/10915/55402 Influence of metallic inclusions on the electromechanical response of ferroelectric ceramics Bottero, Cristian José Idiart, Martín Ignacio 2014-11 2014 2016-09-27T13:05:52Z en Ingeniería Aeronáutica histéresis Cerámica tecnología de materiales 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 Objeto de conferencia Objeto de conferencia http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería Aeronáutica
histéresis
Cerámica
tecnología de materiales
spellingShingle Ingeniería Aeronáutica
histéresis
Cerámica
tecnología de materiales
Bottero, Cristian José
Idiart, Martín Ignacio
Influence of metallic inclusions on the electromechanical response of ferroelectric ceramics
topic_facet Ingeniería Aeronáutica
histéresis
Cerámica
tecnología de materiales
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.
format Objeto de conferencia
Objeto de conferencia
author Bottero, Cristian José
Idiart, Martín Ignacio
author_facet Bottero, Cristian José
Idiart, Martín Ignacio
author_sort Bottero, Cristian José
title Influence of metallic inclusions on the electromechanical response of ferroelectric ceramics
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
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/55402
work_keys_str_mv AT botterocristianjose influenceofmetallicinclusionsontheelectromechanicalresponseofferroelectricceramics
AT idiartmartinignacio influenceofmetallicinclusionsontheelectromechanicalresponseofferroelectricceramics
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