Critical Examination of Distance-Gain-Size (DGS) Diagrams of Ultrasonic NDE with Sound Field Calculations

Ultrasonic non-destructive evaluation, which has been used widely, can detect and size critical flaws in structures. Advances in sound field calculations can further improve its effectiveness. Two calculation methods were used to characterize the relevant sound fields of an ultrasonic transducer and...

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Main Authors: Kanji Ono, Hang Su
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/15/7004
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author Kanji Ono
Hang Su
author_facet Kanji Ono
Hang Su
author_sort Kanji Ono
collection DOAJ
description Ultrasonic non-destructive evaluation, which has been used widely, can detect and size critical flaws in structures. Advances in sound field calculations can further improve its effectiveness. Two calculation methods were used to characterize the relevant sound fields of an ultrasonic transducer and the results were applied to construct and evaluate Distance-Gain-Size (DGS) diagrams, which are useful in flaw sizing. Two published DGS diagrams were found to be deficient because the backward diffraction path was overly simplified and the third one included an arbitrary procedure. Newly constructed DGS diagrams exhibited transducer size dependence, revealing another deficiency in the existing DGS diagrams. However, the extent of the present calculations must be expanded to provide a catalog of DGS diagrams to cover a wide range of practical needs. Details of the new construction method are presented, incorporating two-way diffraction procedures.
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spelling doaj.art-b892c3c9f36b4600a20285fd67bcfdcf2023-11-18T23:37:23ZengMDPI AGSensors1424-82202023-08-012315700410.3390/s23157004Critical Examination of Distance-Gain-Size (DGS) Diagrams of Ultrasonic NDE with Sound Field CalculationsKanji Ono0Hang Su1Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095, USADepartment of Civil and Environmental Engineering, University of California, Los Angeles, CA 90095, USAUltrasonic non-destructive evaluation, which has been used widely, can detect and size critical flaws in structures. Advances in sound field calculations can further improve its effectiveness. Two calculation methods were used to characterize the relevant sound fields of an ultrasonic transducer and the results were applied to construct and evaluate Distance-Gain-Size (DGS) diagrams, which are useful in flaw sizing. Two published DGS diagrams were found to be deficient because the backward diffraction path was overly simplified and the third one included an arbitrary procedure. Newly constructed DGS diagrams exhibited transducer size dependence, revealing another deficiency in the existing DGS diagrams. However, the extent of the present calculations must be expanded to provide a catalog of DGS diagrams to cover a wide range of practical needs. Details of the new construction method are presented, incorporating two-way diffraction procedures.https://www.mdpi.com/1424-8220/23/15/7004Distance-Gain-Size (DGS) diagramsultrasonic non-destructive evaluationsound fieldsultrasonic transducerbackward diffraction pathtwo-way diffraction
spellingShingle Kanji Ono
Hang Su
Critical Examination of Distance-Gain-Size (DGS) Diagrams of Ultrasonic NDE with Sound Field Calculations
Sensors
Distance-Gain-Size (DGS) diagrams
ultrasonic non-destructive evaluation
sound fields
ultrasonic transducer
backward diffraction path
two-way diffraction
title Critical Examination of Distance-Gain-Size (DGS) Diagrams of Ultrasonic NDE with Sound Field Calculations
title_full Critical Examination of Distance-Gain-Size (DGS) Diagrams of Ultrasonic NDE with Sound Field Calculations
title_fullStr Critical Examination of Distance-Gain-Size (DGS) Diagrams of Ultrasonic NDE with Sound Field Calculations
title_full_unstemmed Critical Examination of Distance-Gain-Size (DGS) Diagrams of Ultrasonic NDE with Sound Field Calculations
title_short Critical Examination of Distance-Gain-Size (DGS) Diagrams of Ultrasonic NDE with Sound Field Calculations
title_sort critical examination of distance gain size dgs diagrams of ultrasonic nde with sound field calculations
topic Distance-Gain-Size (DGS) diagrams
ultrasonic non-destructive evaluation
sound fields
ultrasonic transducer
backward diffraction path
two-way diffraction
url https://www.mdpi.com/1424-8220/23/15/7004
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AT hangsu criticalexaminationofdistancegainsizedgsdiagramsofultrasonicndewithsoundfieldcalculations