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Computationally efficient ray tracing algorithm for simulation of transducer fields in anisotropic materials

  • This contribution describes a computationally efficient ray tracing algorithm for evaluating transducer generated ultrasonic wave fields in anisotropic materials such as austenitic cladded and austenitic weld components. According to this algorithm, ray paths are traced during its propagation through various layers of the material and at each Interface the problem of reflection and transmission is solved. The presented algorithm evaluates the transducer generated ultrasonic fields accurately by taking in to account the directivity, divergence, density of rays, phase relations as well as transmission coefficients. The ray tracing algorithm is able to calculate the ultrasonic wave fields generated by a point source as well as a finite dimension transducer. The simulation results are compared quantitatively with the results obtained from Elastodynamic Finite Integration Technique (EFIT) on several configurations generally occuring in the ultrasonic non destructive testing of anisotropicThis contribution describes a computationally efficient ray tracing algorithm for evaluating transducer generated ultrasonic wave fields in anisotropic materials such as austenitic cladded and austenitic weld components. According to this algorithm, ray paths are traced during its propagation through various layers of the material and at each Interface the problem of reflection and transmission is solved. The presented algorithm evaluates the transducer generated ultrasonic fields accurately by taking in to account the directivity, divergence, density of rays, phase relations as well as transmission coefficients. The ray tracing algorithm is able to calculate the ultrasonic wave fields generated by a point source as well as a finite dimension transducer. The simulation results are compared quantitatively with the results obtained from Elastodynamic Finite Integration Technique (EFIT) on several configurations generally occuring in the ultrasonic non destructive testing of anisotropic materials. The excellent agreement between both models confirms the validity of the presented ray tracing algorithm. Finally, the ray tracing model results are also validated by means of experiments.zeige mehrzeige weniger

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Metadaten
Autor*innen:Sanjeevareddy Kolkoori, Mehbub-Ur Rahman, P.K. Chinta, Jens PragerORCiD
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Graue Literatur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):NDE 2011 - National seminar & exhibition on non-destructive evaluation (Proceedings)
Jahr der Erstveröffentlichung:2011
Herausgeber (Institution):Indian Society for Non-Destructive Testing
Erste Seite:482
Letzte Seite:486
Freie Schlagwörter:Anisotropy; Austenitic weld; Directivity; Ray tracing; Ultrasonic sound field
Veranstaltung:NDE 2011 - National seminar & exhibition on non-destructive evaluation
Veranstaltungsort:Chennai, India
Beginndatum der Veranstaltung:08.12.2011
Enddatum der Veranstaltung:10.12.2011
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:19.02.2016
Referierte Publikation:Nein
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