Selective excitation of lamb-waves for damage detection in composites

G. Petculescu; S. Krishnaswamy; J. D. Achenbach

doi:10.1063/1.2184631

Selective excitation of lamb-waves for damage detection in composites

G. Petculescu^*, S. Krishnaswamy, J. D. Achenbach

^*Corresponding author for this work

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

1 Scopus citations

Abstract

Sensors based on periodic arrays of coherent piezoelectric sources (comb design) are used to selectively excite and detect Lamb waves in aluminum and AS4/3601 unidirectional carbon-epoxy plates. 110 μm PVDF film poled in the thickness direction is used as piezoelectric material. An algorithm to eliminate the effect of coupling in amplitude measurements, using individual Lamb modes excited/detected by the same transducer pair, is described. A multiple-impact test showing a decrease in amplitude and group velocity as damage progresses is used as an example.

Original language	English (US)
Title of host publication	Review of Progress in Quantitative Nondestructive Evaluation
Subtitle of host publication	Volume 25B
Pages	979-984
Number of pages	6
DOIs	https://doi.org/10.1063/1.2184631
State	Published - Mar 6 2006
Event	Review of Progress in Quantitative Nondestructive - Brunswick, ME, United States Duration: Jul 31 2005 → Aug 5 2005

Publication series

Name	AIP Conference Proceedings
Volume	820 II
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	Review of Progress in Quantitative Nondestructive
Country/Territory	United States
City	Brunswick, ME
Period	7/31/05 → 8/5/05

Keywords

Coupling cancellation
Lamb waves

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1063/1.2184631

Cite this

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title = "Selective excitation of lamb-waves for damage detection in composites",

abstract = "Sensors based on periodic arrays of coherent piezoelectric sources (comb design) are used to selectively excite and detect Lamb waves in aluminum and AS4/3601 unidirectional carbon-epoxy plates. 110 μm PVDF film poled in the thickness direction is used as piezoelectric material. An algorithm to eliminate the effect of coupling in amplitude measurements, using individual Lamb modes excited/detected by the same transducer pair, is described. A multiple-impact test showing a decrease in amplitude and group velocity as damage progresses is used as an example.",

keywords = "Coupling cancellation, Lamb waves",

author = "G. Petculescu and S. Krishnaswamy and Achenbach, {J. D.}",

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language = "English (US)",

isbn = "0735403120",

series = "AIP Conference Proceedings",

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note = "Review of Progress in Quantitative Nondestructive ; Conference date: 31-07-2005 Through 05-08-2005",

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Petculescu, G, Krishnaswamy, S & Achenbach, JD 2006, Selective excitation of lamb-waves for damage detection in composites. in Review of Progress in Quantitative Nondestructive Evaluation: Volume 25B. AIP Conference Proceedings, vol. 820 II, pp. 979-984, Review of Progress in Quantitative Nondestructive, Brunswick, ME, United States, 7/31/05. https://doi.org/10.1063/1.2184631

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T1 - Selective excitation of lamb-waves for damage detection in composites

AU - Petculescu, G.

AU - Krishnaswamy, S.

AU - Achenbach, J. D.

PY - 2006/3/6

Y1 - 2006/3/6

N2 - Sensors based on periodic arrays of coherent piezoelectric sources (comb design) are used to selectively excite and detect Lamb waves in aluminum and AS4/3601 unidirectional carbon-epoxy plates. 110 μm PVDF film poled in the thickness direction is used as piezoelectric material. An algorithm to eliminate the effect of coupling in amplitude measurements, using individual Lamb modes excited/detected by the same transducer pair, is described. A multiple-impact test showing a decrease in amplitude and group velocity as damage progresses is used as an example.

AB - Sensors based on periodic arrays of coherent piezoelectric sources (comb design) are used to selectively excite and detect Lamb waves in aluminum and AS4/3601 unidirectional carbon-epoxy plates. 110 μm PVDF film poled in the thickness direction is used as piezoelectric material. An algorithm to eliminate the effect of coupling in amplitude measurements, using individual Lamb modes excited/detected by the same transducer pair, is described. A multiple-impact test showing a decrease in amplitude and group velocity as damage progresses is used as an example.

KW - Coupling cancellation

KW - Lamb waves

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BT - Review of Progress in Quantitative Nondestructive Evaluation

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Y2 - 31 July 2005 through 5 August 2005

ER -

Selective excitation of lamb-waves for damage detection in composites

Abstract

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Keywords

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