The Effect of Prestress on Vibration Behavior of Structures in Impedance Method Damage Detection

Structural health monitoring or damage detection has long been a research interest for its great potential for life safety and economic benefits to the industrialized world. Structural vibration behavior is an essential signature of the integrity of structures and hence has been used for damage dete...

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Main Authors: Liu, Xianhua, Paurobally, R., Pan, J.
Format: Journal Article
Published: Trans Tech Publications Inc 2008
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/41574
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author Liu, Xianhua
Paurobally, R.
Pan, J.
author_facet Liu, Xianhua
Paurobally, R.
Pan, J.
author_sort Liu, Xianhua
building Curtin Institutional Repository
collection Online Access
description Structural health monitoring or damage detection has long been a research interest for its great potential for life safety and economic benefits to the industrialized world. Structural vibration behavior is an essential signature of the integrity of structures and hence has been used for damage detection. Structural vibration impedance by way of piezoceramic patch excitation offers a local damage detection technique. It has been known that temperature change has adverse effects on the measured impedance result and can complicate the damage analysis. It is believed that one way of temperature influence on vibration is through adding thermal prestress to the structure. Prestress affects vibration in different ways on different structures and application problems. For the impedance method, prestress comes not only from temperature change but also from other sources such as wind, gravity and working load. This paper deals with prestress effects in the context of local vibration behavior of structures. A theoretical analysis is given on how prestress affects the vibration. Experimental impedance measurement results for piezoceramic patch excited vibration of simple structures such as plates under prestress are presented.
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publishDate 2008
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spelling curtin-20.500.11937-415742017-09-13T14:19:01Z The Effect of Prestress on Vibration Behavior of Structures in Impedance Method Damage Detection Liu, Xianhua Paurobally, R. Pan, J. Damage detection Impedance method Prestressed vibration Structural health monitoring Structural health monitoring or damage detection has long been a research interest for its great potential for life safety and economic benefits to the industrialized world. Structural vibration behavior is an essential signature of the integrity of structures and hence has been used for damage detection. Structural vibration impedance by way of piezoceramic patch excitation offers a local damage detection technique. It has been known that temperature change has adverse effects on the measured impedance result and can complicate the damage analysis. It is believed that one way of temperature influence on vibration is through adding thermal prestress to the structure. Prestress affects vibration in different ways on different structures and application problems. For the impedance method, prestress comes not only from temperature change but also from other sources such as wind, gravity and working load. This paper deals with prestress effects in the context of local vibration behavior of structures. A theoretical analysis is given on how prestress affects the vibration. Experimental impedance measurement results for piezoceramic patch excited vibration of simple structures such as plates under prestress are presented. 2008 Journal Article http://hdl.handle.net/20.500.11937/41574 10.4028/www.scientific.net/AMR.41-42.401 Trans Tech Publications Inc restricted
spellingShingle Damage detection
Impedance method
Prestressed vibration
Structural health monitoring
Liu, Xianhua
Paurobally, R.
Pan, J.
The Effect of Prestress on Vibration Behavior of Structures in Impedance Method Damage Detection
title The Effect of Prestress on Vibration Behavior of Structures in Impedance Method Damage Detection
title_full The Effect of Prestress on Vibration Behavior of Structures in Impedance Method Damage Detection
title_fullStr The Effect of Prestress on Vibration Behavior of Structures in Impedance Method Damage Detection
title_full_unstemmed The Effect of Prestress on Vibration Behavior of Structures in Impedance Method Damage Detection
title_short The Effect of Prestress on Vibration Behavior of Structures in Impedance Method Damage Detection
title_sort effect of prestress on vibration behavior of structures in impedance method damage detection
topic Damage detection
Impedance method
Prestressed vibration
Structural health monitoring
url http://hdl.handle.net/20.500.11937/41574