On the improvement of strain measurements with FBG sensors embedded in unidirectional composites

Detalhes bibliográficos
Autor(a) principal: Pereira,G
Data de Publicação: 2013
Outros Autores: Frias,C, Faria,H, Orlando Frazão, Marques,AT
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://repositorio.inesctec.pt/handle/123456789/7289
http://dx.doi.org/10.1016/j.polymertesting.2012.09.010
Resumo: Optical fibre Bragg grating (FBG) sensors are now quite established and widely used in strain measurements of composites. However, insufficient understanding of the limitations of the embedment and measuring techniques often lead to inaccurate and inconclusive results. In this study, a novel method to improve the reliability and accuracy of the strain measurements on unidirectional composites using embedded FBG sensors was successfully developed. Using a carbon/epoxy prepreg system, test specimens were manufactured with longitudinally embedded FBG sensors. The combined behaviour of the sensors and the host material was characterized and a calibration rule (correction factor) was determined for the chosen material. The consistency of the results with both theoretical and empirical assumptions suggests that the proposed method is applicable to a wide range of FBG sensors and host materials.
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spelling On the improvement of strain measurements with FBG sensors embedded in unidirectional compositesOptical fibre Bragg grating (FBG) sensors are now quite established and widely used in strain measurements of composites. However, insufficient understanding of the limitations of the embedment and measuring techniques often lead to inaccurate and inconclusive results. In this study, a novel method to improve the reliability and accuracy of the strain measurements on unidirectional composites using embedded FBG sensors was successfully developed. Using a carbon/epoxy prepreg system, test specimens were manufactured with longitudinally embedded FBG sensors. The combined behaviour of the sensors and the host material was characterized and a calibration rule (correction factor) was determined for the chosen material. The consistency of the results with both theoretical and empirical assumptions suggests that the proposed method is applicable to a wide range of FBG sensors and host materials.2018-01-23T13:34:57Z2013-01-01T00:00:00Z2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://repositorio.inesctec.pt/handle/123456789/7289http://dx.doi.org/10.1016/j.polymertesting.2012.09.010engPereira,GFrias,CFaria,HOrlando FrazãoMarques,ATinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-05-15T10:19:56Zoai:repositorio.inesctec.pt:123456789/7289Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:52:27.480145Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv On the improvement of strain measurements with FBG sensors embedded in unidirectional composites
title On the improvement of strain measurements with FBG sensors embedded in unidirectional composites
spellingShingle On the improvement of strain measurements with FBG sensors embedded in unidirectional composites
Pereira,G
title_short On the improvement of strain measurements with FBG sensors embedded in unidirectional composites
title_full On the improvement of strain measurements with FBG sensors embedded in unidirectional composites
title_fullStr On the improvement of strain measurements with FBG sensors embedded in unidirectional composites
title_full_unstemmed On the improvement of strain measurements with FBG sensors embedded in unidirectional composites
title_sort On the improvement of strain measurements with FBG sensors embedded in unidirectional composites
author Pereira,G
author_facet Pereira,G
Frias,C
Faria,H
Orlando Frazão
Marques,AT
author_role author
author2 Frias,C
Faria,H
Orlando Frazão
Marques,AT
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Pereira,G
Frias,C
Faria,H
Orlando Frazão
Marques,AT
description Optical fibre Bragg grating (FBG) sensors are now quite established and widely used in strain measurements of composites. However, insufficient understanding of the limitations of the embedment and measuring techniques often lead to inaccurate and inconclusive results. In this study, a novel method to improve the reliability and accuracy of the strain measurements on unidirectional composites using embedded FBG sensors was successfully developed. Using a carbon/epoxy prepreg system, test specimens were manufactured with longitudinally embedded FBG sensors. The combined behaviour of the sensors and the host material was characterized and a calibration rule (correction factor) was determined for the chosen material. The consistency of the results with both theoretical and empirical assumptions suggests that the proposed method is applicable to a wide range of FBG sensors and host materials.
publishDate 2013
dc.date.none.fl_str_mv 2013-01-01T00:00:00Z
2013
2018-01-23T13:34:57Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.inesctec.pt/handle/123456789/7289
http://dx.doi.org/10.1016/j.polymertesting.2012.09.010
url http://repositorio.inesctec.pt/handle/123456789/7289
http://dx.doi.org/10.1016/j.polymertesting.2012.09.010
dc.language.iso.fl_str_mv eng
language eng
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dc.format.none.fl_str_mv application/pdf
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instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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