Experimental analysis of the feasibility of low-cost piezoelectric diaphragms in impedance-based SHM applications

Detalhes bibliográficos
Autor(a) principal: Silva De Freitas, Everaldo [UNESP]
Data de Publicação: 2016
Outros Autores: Guimarães Baptista, Fabricio [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.sna.2015.11.031
http://hdl.handle.net/11449/172379
Resumo: Structural health monitoring (SHM) systems with damage detection based on the electromechanical impedance (EMI) method have received attention in recent decades because of the simplicity of the methodology, which is based on the use of small and lightweight piezoelectric transducers that operate simultaneously as sensors and actuators. Typically, the piezoelectric transducers used in the EMI method have been thin PZT (lead zirconate titanate) ceramics, which can be cut into different sizes and shapes. In this study, an experimental analysis of the feasibility of low-cost piezoelectric diaphragms, commonly known as buzzers, for damage detection based on the EMI method is presented. Diaphragms of different sizes were evaluated in aluminum beams, and the experimental results were compared with those obtained from a conventional PZT ceramic. Four types of experiments were performed: sensitivity estimation using the pencil lead break (PLB) method, analysis of the ability to detect structural damage using conventional impedance signatures and damage indices, analysis of temperature effects, and determination of the long-term reproducibility of the results. The results indicate that a conventional PZT ceramic and a diaphragm of similar size have similar reproducibilities and sensitivities to damage and temperature effects.
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spelling Experimental analysis of the feasibility of low-cost piezoelectric diaphragms in impedance-based SHM applicationsDamage detectionFeasibilityImpedancePiezoelectric diaphragmsPZTSHMStructural health monitoring (SHM) systems with damage detection based on the electromechanical impedance (EMI) method have received attention in recent decades because of the simplicity of the methodology, which is based on the use of small and lightweight piezoelectric transducers that operate simultaneously as sensors and actuators. Typically, the piezoelectric transducers used in the EMI method have been thin PZT (lead zirconate titanate) ceramics, which can be cut into different sizes and shapes. In this study, an experimental analysis of the feasibility of low-cost piezoelectric diaphragms, commonly known as buzzers, for damage detection based on the EMI method is presented. Diaphragms of different sizes were evaluated in aluminum beams, and the experimental results were compared with those obtained from a conventional PZT ceramic. Four types of experiments were performed: sensitivity estimation using the pencil lead break (PLB) method, analysis of the ability to detect structural damage using conventional impedance signatures and damage indices, analysis of temperature effects, and determination of the long-term reproducibility of the results. The results indicate that a conventional PZT ceramic and a diaphragm of similar size have similar reproducibilities and sensitivities to damage and temperature effects.Faculdade de Engenharia UNESP - Univ Estadual Paulista Campus de Bauru Departamento de Engenharia ElétricaCentro Universitário de Lins Unilins Departamento de Engenharia Elétrica e AutomaçãoFaculdade de Engenharia UNESP - Univ Estadual Paulista Campus de Bauru Departamento de Engenharia ElétricaUniversidade Estadual Paulista (Unesp)UnilinsSilva De Freitas, Everaldo [UNESP]Guimarães Baptista, Fabricio [UNESP]2018-12-11T16:59:59Z2018-12-11T16:59:59Z2016-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article220-228application/pdfhttp://dx.doi.org/10.1016/j.sna.2015.11.031Sensors and Actuators, A: Physical, v. 238, p. 220-228.0924-4247http://hdl.handle.net/11449/17237910.1016/j.sna.2015.11.0312-s2.0-849529123902-s2.0-84952912390.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengSensors and Actuators, A: Physical0,699info:eu-repo/semantics/openAccess2024-06-28T13:34:11Zoai:repositorio.unesp.br:11449/172379Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:04:55.113589Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Experimental analysis of the feasibility of low-cost piezoelectric diaphragms in impedance-based SHM applications
title Experimental analysis of the feasibility of low-cost piezoelectric diaphragms in impedance-based SHM applications
spellingShingle Experimental analysis of the feasibility of low-cost piezoelectric diaphragms in impedance-based SHM applications
Silva De Freitas, Everaldo [UNESP]
Damage detection
Feasibility
Impedance
Piezoelectric diaphragms
PZT
SHM
title_short Experimental analysis of the feasibility of low-cost piezoelectric diaphragms in impedance-based SHM applications
title_full Experimental analysis of the feasibility of low-cost piezoelectric diaphragms in impedance-based SHM applications
title_fullStr Experimental analysis of the feasibility of low-cost piezoelectric diaphragms in impedance-based SHM applications
title_full_unstemmed Experimental analysis of the feasibility of low-cost piezoelectric diaphragms in impedance-based SHM applications
title_sort Experimental analysis of the feasibility of low-cost piezoelectric diaphragms in impedance-based SHM applications
author Silva De Freitas, Everaldo [UNESP]
author_facet Silva De Freitas, Everaldo [UNESP]
Guimarães Baptista, Fabricio [UNESP]
author_role author
author2 Guimarães Baptista, Fabricio [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Unilins
dc.contributor.author.fl_str_mv Silva De Freitas, Everaldo [UNESP]
Guimarães Baptista, Fabricio [UNESP]
dc.subject.por.fl_str_mv Damage detection
Feasibility
Impedance
Piezoelectric diaphragms
PZT
SHM
topic Damage detection
Feasibility
Impedance
Piezoelectric diaphragms
PZT
SHM
description Structural health monitoring (SHM) systems with damage detection based on the electromechanical impedance (EMI) method have received attention in recent decades because of the simplicity of the methodology, which is based on the use of small and lightweight piezoelectric transducers that operate simultaneously as sensors and actuators. Typically, the piezoelectric transducers used in the EMI method have been thin PZT (lead zirconate titanate) ceramics, which can be cut into different sizes and shapes. In this study, an experimental analysis of the feasibility of low-cost piezoelectric diaphragms, commonly known as buzzers, for damage detection based on the EMI method is presented. Diaphragms of different sizes were evaluated in aluminum beams, and the experimental results were compared with those obtained from a conventional PZT ceramic. Four types of experiments were performed: sensitivity estimation using the pencil lead break (PLB) method, analysis of the ability to detect structural damage using conventional impedance signatures and damage indices, analysis of temperature effects, and determination of the long-term reproducibility of the results. The results indicate that a conventional PZT ceramic and a diaphragm of similar size have similar reproducibilities and sensitivities to damage and temperature effects.
publishDate 2016
dc.date.none.fl_str_mv 2016-02-01
2018-12-11T16:59:59Z
2018-12-11T16:59:59Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.sna.2015.11.031
Sensors and Actuators, A: Physical, v. 238, p. 220-228.
0924-4247
http://hdl.handle.net/11449/172379
10.1016/j.sna.2015.11.031
2-s2.0-84952912390
2-s2.0-84952912390.pdf
url http://dx.doi.org/10.1016/j.sna.2015.11.031
http://hdl.handle.net/11449/172379
identifier_str_mv Sensors and Actuators, A: Physical, v. 238, p. 220-228.
0924-4247
10.1016/j.sna.2015.11.031
2-s2.0-84952912390
2-s2.0-84952912390.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Sensors and Actuators, A: Physical
0,699
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 220-228
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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