Analysis of instantaneous characteristics of guided ultrasonic waves in metallic structures with aluminium repair patches

S. Pavlopoulou; W. J. Staszewski; C. Soutis; G. Manson

doi:10.1117/12.886187

Analysis of instantaneous characteristics of guided ultrasonic waves in metallic structures with aluminium repair patches

S. Pavlopoulou, W. J. Staszewski, C. Soutis, G. Manson

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Lamb wave inspection is one of the most widely used damage detection techniques based on ultrasonic waves. Many signal processing techniques have been developed for extraction of signal features related to damage. The majority of these investigations focus on amplitude analysis. The paper analyses Lamb wave instantaneous phase and frequency. The Hilbert transform is used to obtain signal instantaneous characteristics. Application examples are related to smart structural repair. Cracked metallic plates are repaired using bonded aluminium patches instrumented with low-profile, surface bonded piezoceramic transducers. The study demonstrates that phase and frequency information from Lamb waves is very useful for monitoring structural repair. © 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).

Original language	English
Title of host publication	Proceedings of SPIE - The International Society for Optical Engineering\|Proc SPIE Int Soc Opt Eng
Volume	7984
DOIs	https://doi.org/10.1117/12.886187
Publication status	Published - 2011
Event	Health Monitoring of Structural and Biological Systems 2011 - San Diego, CA Duration: 1 Jul 2011 → …

Conference

Conference	Health Monitoring of Structural and Biological Systems 2011
City	San Diego, CA
Period	1/07/11 → …

Keywords

bonded repair patches
fatigue damage detection
instantaneous frequency
instantaneous phase
Lamb waves

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10.1117/12.886187

Cite this

@inproceedings{5e0cba4c3a5343f4ae37a0f321458776,

title = "Analysis of instantaneous characteristics of guided ultrasonic waves in metallic structures with aluminium repair patches",

abstract = "Lamb wave inspection is one of the most widely used damage detection techniques based on ultrasonic waves. Many signal processing techniques have been developed for extraction of signal features related to damage. The majority of these investigations focus on amplitude analysis. The paper analyses Lamb wave instantaneous phase and frequency. The Hilbert transform is used to obtain signal instantaneous characteristics. Application examples are related to smart structural repair. Cracked metallic plates are repaired using bonded aluminium patches instrumented with low-profile, surface bonded piezoceramic transducers. The study demonstrates that phase and frequency information from Lamb waves is very useful for monitoring structural repair. {\textcopyright} 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).",

keywords = "bonded repair patches, fatigue damage detection, instantaneous frequency, instantaneous phase, Lamb waves",

author = "S. Pavlopoulou and Staszewski, {W. J.} and C. Soutis and G. Manson",

year = "2011",

doi = "10.1117/12.886187",

language = "English",

isbn = "9780819485465",

volume = "7984",

booktitle = "Proceedings of SPIE - The International Society for Optical Engineering|Proc SPIE Int Soc Opt Eng",

note = "Health Monitoring of Structural and Biological Systems 2011 ; Conference date: 01-07-2011",

}

Pavlopoulou, S, Staszewski, WJ, Soutis, C & Manson, G 2011, Analysis of instantaneous characteristics of guided ultrasonic waves in metallic structures with aluminium repair patches. in Proceedings of SPIE - The International Society for Optical Engineering|Proc SPIE Int Soc Opt Eng. vol. 7984, Health Monitoring of Structural and Biological Systems 2011, San Diego, CA, 1/07/11. https://doi.org/10.1117/12.886187

Analysis of instantaneous characteristics of guided ultrasonic waves in metallic structures with aluminium repair patches. / Pavlopoulou, S.; Staszewski, W. J.; Soutis, C. et al.
Proceedings of SPIE - The International Society for Optical Engineering|Proc SPIE Int Soc Opt Eng. Vol. 7984 2011.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Analysis of instantaneous characteristics of guided ultrasonic waves in metallic structures with aluminium repair patches

AU - Pavlopoulou, S.

AU - Staszewski, W. J.

AU - Soutis, C.

AU - Manson, G.

PY - 2011

Y1 - 2011

N2 - Lamb wave inspection is one of the most widely used damage detection techniques based on ultrasonic waves. Many signal processing techniques have been developed for extraction of signal features related to damage. The majority of these investigations focus on amplitude analysis. The paper analyses Lamb wave instantaneous phase and frequency. The Hilbert transform is used to obtain signal instantaneous characteristics. Application examples are related to smart structural repair. Cracked metallic plates are repaired using bonded aluminium patches instrumented with low-profile, surface bonded piezoceramic transducers. The study demonstrates that phase and frequency information from Lamb waves is very useful for monitoring structural repair. © 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).

AB - Lamb wave inspection is one of the most widely used damage detection techniques based on ultrasonic waves. Many signal processing techniques have been developed for extraction of signal features related to damage. The majority of these investigations focus on amplitude analysis. The paper analyses Lamb wave instantaneous phase and frequency. The Hilbert transform is used to obtain signal instantaneous characteristics. Application examples are related to smart structural repair. Cracked metallic plates are repaired using bonded aluminium patches instrumented with low-profile, surface bonded piezoceramic transducers. The study demonstrates that phase and frequency information from Lamb waves is very useful for monitoring structural repair. © 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).

KW - bonded repair patches

KW - fatigue damage detection

KW - instantaneous frequency

KW - instantaneous phase

KW - Lamb waves

U2 - 10.1117/12.886187

DO - 10.1117/12.886187

M3 - Conference contribution

SN - 9780819485465

VL - 7984

BT - Proceedings of SPIE - The International Society for Optical Engineering|Proc SPIE Int Soc Opt Eng

T2 - Health Monitoring of Structural and Biological Systems 2011

Y2 - 1 July 2011

ER -

Analysis of instantaneous characteristics of guided ultrasonic waves in metallic structures with aluminium repair patches

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