Experimental study and signal analysis in the Lamb wave conversion at a bevelled edge.
Identifieur interne : 000D61 ( France/Analysis ); précédent : 000D60; suivant : 000D62Experimental study and signal analysis in the Lamb wave conversion at a bevelled edge.
Auteurs : N. Wilkie-Chancellier [France] ; H. Duflo ; A. Tinel ; J. DuclosSource :
- Ultrasonics [ 0041-624X ] ; 2004.
Abstract
This paper deals with a quantitative study of the conversion of a Lamb wave at the bevelled edge of a plate. A harmonic wave (successively the A1 and S0 Lamb modes) is generated using a wedge. The normal displacements at the surface of the plate are measured with a laser vibrometer and used to compute an energy evaluation. In order to determine a good mean value of incident and reflected wave amplitudes, the signals are isolated by a Fourier treatment. Then, the energy flow repartition among the converted modes is computed in both cases and for different values of the bevel angle.
DOI: 10.1016/j.ultras.2004.01.038
PubMed: 15047315
Affiliations:
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Tinel</name></author><author><name sortKey="Duclos, J" sort="Duclos, J" uniqKey="Duclos J" first="J" last="Duclos">J. Duclos</name></author></analytic><series><title level="j">Ultrasonics</title><idno type="ISSN">0041-624X</idno><imprint><date when="2004" type="published">2004</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This paper deals with a quantitative study of the conversion of a Lamb wave at the bevelled edge of a plate. A harmonic wave (successively the A1 and S0 Lamb modes) is generated using a wedge. The normal displacements at the surface of the plate are measured with a laser vibrometer and used to compute an energy evaluation. In order to determine a good mean value of incident and reflected wave amplitudes, the signals are isolated by a Fourier treatment. Then, the energy flow repartition among the converted modes is computed in both cases and for different values of the bevel angle.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Haute-Normandie</li><li>Région Normandie</li></region><settlement><li>Le Havre</li></settlement><orgName><li>Université du Havre</li></orgName></list><tree><noCountry><name sortKey="Duclos, J" sort="Duclos, J" uniqKey="Duclos J" first="J" last="Duclos">J. Duclos</name><name sortKey="Duflo, H" sort="Duflo, H" uniqKey="Duflo H" first="H" last="Duflo">H. Duflo</name><name sortKey="Tinel, A" sort="Tinel, A" uniqKey="Tinel A" first="A" last="Tinel">A. Tinel</name></noCountry><country name="France"><region name="Région Normandie"><name sortKey="Wilkie Chancellier, N" sort="Wilkie Chancellier, N" uniqKey="Wilkie Chancellier N" first="N" last="Wilkie-Chancellier">N. 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