Simulation of lamb wave propagation with elastodynamic finite integration technique (EFIT)
- This paper presents the numerical modeling of the Lamb wave propagation in plate like structures 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 can be used to model this complex NDT situation. EFIT is an effective tool to model such problems in an efficient way. With the help of the simulation results obtained from the EFIT tool the propagation of different symmetric and antisymmetric Lamb wave modes is analyzed and thus a proper technique is developed to excite different modes and to separate them from each otherThis paper presents the numerical modeling of the Lamb wave propagation in plate like structures 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 can be used to model this complex NDT situation. EFIT is an effective tool to model such problems in an efficient way. With the help of the simulation results obtained from the EFIT tool the propagation of different symmetric and antisymmetric Lamb wave 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 measured results is also presented.…
Autor*innen: | Mehbub-Ur Rahman, Jens PragerORCiD |
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Dokumenttyp: | Beitrag zu einem Tagungsband |
Veröffentlichungsform: | Graue Literatur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | DAGA 2012 - 38. Jahrestagung für Akustik - Fortschritte der Akustik |
Jahr der Erstveröffentlichung: | 2012 |
Herausgeber (Institution): | Technische Universität Darmstadt |
Verlag: | Deutsche Gesellschaft für Akustik e.V. |
Erste Seite: | 953 |
Letzte Seite: | 954 |
Veranstaltung: | DAGA 2012 - 38. Jahrestagung für Akustik - Fortschritte der Akustik |
Veranstaltungsort: | Darmstadt, Deutschland |
Beginndatum der Veranstaltung: | 2012-03-19 |
Enddatum der Veranstaltung: | 2012-03-22 |
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: | Nein |