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Modeling of lamb wave propagation with elastodynamic finite integration technique

  • This paper presents the numerical modeling of the Lamb wave propagation in thin plates with the elastodynamic finite integration technique (EFIT) and its validation with the measured results. In general, Lamb waves offer an attractive method to detect the defects inside long plate like structures efficiently. However, such a nondestructive testing (NDT) requires profound understanding of the Lamb wave propagation in the plates, generation of the symmetric and anti-symmetric modes of different orders and their interaction with the defects of the materials. Modern simulation tools based on numerical methods such as the finite integration technique (FIT), the finite element method (FEM) and the boundary element method (BEM) can be used to model this NDT situation. The elastodynamic finite integration technique (EFIT) is an effective tool to model Lamb wave propagation in plates over long distances in an efficient way. With the help of the simulation results obtained from the EFIT tool theThis paper presents the numerical modeling of the Lamb wave propagation in thin plates with the elastodynamic finite integration technique (EFIT) and its validation with the measured results. In general, Lamb waves offer an attractive method to detect the defects inside long plate like structures efficiently. However, such a nondestructive testing (NDT) requires profound understanding of the Lamb wave propagation in the plates, generation of the symmetric and anti-symmetric modes of different orders and their interaction with the defects of the materials. Modern simulation tools based on numerical methods such as the finite integration technique (FIT), the finite element method (FEM) and the boundary element method (BEM) can be used to model this NDT situation. The elastodynamic finite integration technique (EFIT) is an effective tool to model Lamb wave propagation in plates over long distances in an efficient way. With the help of the simulation results obtained from the EFIT tool the propagation of different symmetric and anti-symmetric modes is analyzed and thus a proper technique is developed to excite different modes and to separate them from each other precisely. A validation of the numerical results with the analytical results is also presented.zeige mehrzeige weniger

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Metadaten
Autor*innen:Mehbub-Ur Rahman, Jens PragerORCiD
Persönliche Herausgeber*innen:B. B. J. Linde, J. Paczkowski, N. Ponikwicki
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):International congress on ultrasonics
Jahr der Erstveröffentlichung:2012
Herausgeber (Institution):University of Gdansk, Poland
Verlag:American Institute of Physics
Verlagsort:Melville, NY
Ausgabe/Heft:1433
Erste Seite:455
Letzte Seite:458
Freie Schlagwörter:EFIT; Lamb wave; NDT; Symmetric and anti-symmetric modes
Veranstaltung:International congress on ultrasonics
Veranstaltungsort:Gdansk, Poland
Beginndatum der Veranstaltung:2011-09-05
Enddatum der Veranstaltung:2011-09-08
DOI:10.1063/1.3703226
ISSN:0094-243X
ISBN:978-0-7354-1019-0
Bemerkung:
Serientitel: AIP conference proceedings – Series title: AIP conference proceedings
Verfügbarkeit des Dokuments:Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")
Bibliotheksstandort:Sonderstandort: Publica-Schrank
Datum der Freischaltung:19.02.2016
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:02.08.2012
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