Guided Wave Inspection of Pipes Using Electromagnetic Acoustic Transducers

Persistent Link:
http://hdl.handle.net/10150/193355
Title:
Guided Wave Inspection of Pipes Using Electromagnetic Acoustic Transducers
Author:
Vasiljevic, Milos
Issue Date:
2007
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
This research covers modeling of Electro Magnetic Acoustic Transducers (EMATs) and their application in excitation and detection of longitudinal guided Lamb wave modes for evaluation of flaws in cylindrical pipes. The combination of the configuration of transducers and the frequency of the input current is essential for successful excitation of desired guided wave modes and for proper interpretation of the results. In this study EMATs were successfully constructed and longitudinal modes L(0,1) and L(0,2) were excited in the pipe. From the recorded signals the level of simulated damage in pipes could be assessed. It is also possible to theoretically predict the location of the pipe flaws. Theoretical predictions are matched with experimental results. Dents and holes in pipes are detected by appropriate signal processing of received L(0,1) and L(0,2) modes.
Type:
text; Electronic Thesis
Keywords:
Guided wave; EMAT; Electro-Magnetic Acoustic Transducers; Pipe Inspection; Damage Detection.
Degree Name:
MS
Degree Level:
masters
Degree Program:
Engineering Mechanics; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Kundu, Tribikram

Full metadata record

DC FieldValue Language
dc.language.isoENen_US
dc.titleGuided Wave Inspection of Pipes Using Electromagnetic Acoustic Transducersen_US
dc.creatorVasiljevic, Milosen_US
dc.contributor.authorVasiljevic, Milosen_US
dc.date.issued2007en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThis research covers modeling of Electro Magnetic Acoustic Transducers (EMATs) and their application in excitation and detection of longitudinal guided Lamb wave modes for evaluation of flaws in cylindrical pipes. The combination of the configuration of transducers and the frequency of the input current is essential for successful excitation of desired guided wave modes and for proper interpretation of the results. In this study EMATs were successfully constructed and longitudinal modes L(0,1) and L(0,2) were excited in the pipe. From the recorded signals the level of simulated damage in pipes could be assessed. It is also possible to theoretically predict the location of the pipe flaws. Theoretical predictions are matched with experimental results. Dents and holes in pipes are detected by appropriate signal processing of received L(0,1) and L(0,2) modes.en_US
dc.typetexten_US
dc.typeElectronic Thesisen_US
dc.subjectGuided waveen_US
dc.subjectEMATen_US
dc.subjectElectro-Magnetic Acoustic Transducersen_US
dc.subjectPipe Inspectionen_US
dc.subjectDamage Detection.en_US
thesis.degree.nameMSen_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineEngineering Mechanicsen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairKundu, Tribikramen_US
dc.identifier.proquest2523en_US
dc.identifier.oclc659748469en_US
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