Effect of varying axial load under fixed boundary condition on admittance signatures of electromechanical impedance technique

In recent years, researchers in the field of structural health monitoring have been rigorously striving to replace the conventional nondestructive evaluation techniques with the smart material–based structural health monitoring techniques. These techniques possess distinct advantages over the conven...

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Main Authors: Lim, Y. Y., Soh, Chee Kiong
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2013
Online Access:https://hdl.handle.net/10356/99579
http://hdl.handle.net/10220/12933
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-995792020-03-07T11:43:46Z Effect of varying axial load under fixed boundary condition on admittance signatures of electromechanical impedance technique Lim, Y. Y. Soh, Chee Kiong School of Civil and Environmental Engineering In recent years, researchers in the field of structural health monitoring have been rigorously striving to replace the conventional nondestructive evaluation techniques with the smart material–based structural health monitoring techniques. These techniques possess distinct advantages over the conventional techniques, such as capable of providing autonomous, real-time, reliable, and cost-efficient monitoring. For instance, the electromechanical impedance technique employing smart piezo-impedance transducer (lead zirconate titanate) is known for its sensitivity in detecting damage. The admittance signatures of the electromechanical impedance technique for structural health monitoring are susceptible to variation in the static load applied on the host structure, which should not be ignored. This article presents a series of experimental, analytical, and numerical studies conducted to investigate the effect of varying axial load in the presence of fixed boundary condition on the admittance signatures. Theoretically, the extensional vibration is not affected by any static axial load acting in the same direction. However, it is useful in identifying the effect of stiffening caused by the boundary condition upon increase in the axial force, which contributes to the discrepancy between the experiments and the analytical models. This study suggests that the effect of boundary condition is substantial, which should be carefully considered in real-life application of the electromechanical impedance technique for structural health monitoring. 2013-08-02T06:53:35Z 2019-12-06T20:09:13Z 2013-08-02T06:53:35Z 2019-12-06T20:09:13Z 2012 2012 Journal Article Lim, Y. Y., & Soh, C. K. (2012). Effect of varying axial load under fixed boundary condition on admittance signatures of electromechanical impedance technique. Journal of Intelligent Material Systems and Structures, 23(7), 815-826. https://hdl.handle.net/10356/99579 http://hdl.handle.net/10220/12933 10.1177/1045389X12437888 en Journal of intelligent material systems and structures
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
description In recent years, researchers in the field of structural health monitoring have been rigorously striving to replace the conventional nondestructive evaluation techniques with the smart material–based structural health monitoring techniques. These techniques possess distinct advantages over the conventional techniques, such as capable of providing autonomous, real-time, reliable, and cost-efficient monitoring. For instance, the electromechanical impedance technique employing smart piezo-impedance transducer (lead zirconate titanate) is known for its sensitivity in detecting damage. The admittance signatures of the electromechanical impedance technique for structural health monitoring are susceptible to variation in the static load applied on the host structure, which should not be ignored. This article presents a series of experimental, analytical, and numerical studies conducted to investigate the effect of varying axial load in the presence of fixed boundary condition on the admittance signatures. Theoretically, the extensional vibration is not affected by any static axial load acting in the same direction. However, it is useful in identifying the effect of stiffening caused by the boundary condition upon increase in the axial force, which contributes to the discrepancy between the experiments and the analytical models. This study suggests that the effect of boundary condition is substantial, which should be carefully considered in real-life application of the electromechanical impedance technique for structural health monitoring.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Lim, Y. Y.
Soh, Chee Kiong
format Article
author Lim, Y. Y.
Soh, Chee Kiong
spellingShingle Lim, Y. Y.
Soh, Chee Kiong
Effect of varying axial load under fixed boundary condition on admittance signatures of electromechanical impedance technique
author_sort Lim, Y. Y.
title Effect of varying axial load under fixed boundary condition on admittance signatures of electromechanical impedance technique
title_short Effect of varying axial load under fixed boundary condition on admittance signatures of electromechanical impedance technique
title_full Effect of varying axial load under fixed boundary condition on admittance signatures of electromechanical impedance technique
title_fullStr Effect of varying axial load under fixed boundary condition on admittance signatures of electromechanical impedance technique
title_full_unstemmed Effect of varying axial load under fixed boundary condition on admittance signatures of electromechanical impedance technique
title_sort effect of varying axial load under fixed boundary condition on admittance signatures of electromechanical impedance technique
publishDate 2013
url https://hdl.handle.net/10356/99579
http://hdl.handle.net/10220/12933
_version_ 1681037527335567360