Structural Health Monitoring Using High-Frequency Electromechanical Impedance Signatures

An overview of recent advances in electromechanical impedance- (EMI-) based structural health monitoring is presented in this paper. The basic principle of the EMI method is to use high-frequency excitation to sense the local area of a structure. Changes in impedance indicate changes in the structur...

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Main Authors: Wei Yan, W. Q. Chen
Format: Article
Language:English
Published: Wiley 2010-01-01
Series:Advances in Civil Engineering
Online Access:http://dx.doi.org/10.1155/2010/429148
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author Wei Yan
W. Q. Chen
author_facet Wei Yan
W. Q. Chen
author_sort Wei Yan
collection DOAJ
description An overview of recent advances in electromechanical impedance- (EMI-) based structural health monitoring is presented in this paper. The basic principle of the EMI method is to use high-frequency excitation to sense the local area of a structure. Changes in impedance indicate changes in the structure, which in turn indicate that damages appear. An accurate EMI model based on the method of reverberation-ray matrix is introduced to correlate changes in the signatures to physical parameters of structures for damage detection. Comparison with other numerical results and experimental data validates the present model. A brief remark of the feasibility of implementing the EMI method is considered and the effects of some physical parameters on EMI technique are also discussed.
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institution Kabale University
issn 1687-8086
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language English
publishDate 2010-01-01
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series Advances in Civil Engineering
spelling doaj-art-291908270af2414fa4129e4fe86a30ae2025-02-03T00:59:29ZengWileyAdvances in Civil Engineering1687-80861687-80942010-01-01201010.1155/2010/429148429148Structural Health Monitoring Using High-Frequency Electromechanical Impedance SignaturesWei Yan0W. Q. Chen1Faculty of Architectural, Civil Engineering and Environment, Ningbo University, Ningbo 315211, ChinaDepartment of Engineering Mechanics, Zhejiang University, Yuquan Campus, Hangzhou 310027, ChinaAn overview of recent advances in electromechanical impedance- (EMI-) based structural health monitoring is presented in this paper. The basic principle of the EMI method is to use high-frequency excitation to sense the local area of a structure. Changes in impedance indicate changes in the structure, which in turn indicate that damages appear. An accurate EMI model based on the method of reverberation-ray matrix is introduced to correlate changes in the signatures to physical parameters of structures for damage detection. Comparison with other numerical results and experimental data validates the present model. A brief remark of the feasibility of implementing the EMI method is considered and the effects of some physical parameters on EMI technique are also discussed.http://dx.doi.org/10.1155/2010/429148
spellingShingle Wei Yan
W. Q. Chen
Structural Health Monitoring Using High-Frequency Electromechanical Impedance Signatures
Advances in Civil Engineering
title Structural Health Monitoring Using High-Frequency Electromechanical Impedance Signatures
title_full Structural Health Monitoring Using High-Frequency Electromechanical Impedance Signatures
title_fullStr Structural Health Monitoring Using High-Frequency Electromechanical Impedance Signatures
title_full_unstemmed Structural Health Monitoring Using High-Frequency Electromechanical Impedance Signatures
title_short Structural Health Monitoring Using High-Frequency Electromechanical Impedance Signatures
title_sort structural health monitoring using high frequency electromechanical impedance signatures
url http://dx.doi.org/10.1155/2010/429148
work_keys_str_mv AT weiyan structuralhealthmonitoringusinghighfrequencyelectromechanicalimpedancesignatures
AT wqchen structuralhealthmonitoringusinghighfrequencyelectromechanicalimpedancesignatures