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Determination of Incident Angle and Position of Optimal Mode Ultrasonic Beam for Flaw Detection in Anisotropic and Inhomogeneous Weldments by Ray Tracing  

Zhao, Xinyu (State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology)
Song, Sung-Jin (School of Mechanical Engineering, Sungkyunkwan University)
Kim, Hak-Joon (School of Mechanical Engineering, Sungkyunkwan University)
Gang, Tie (State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology)
Kang, Suk-Chull (Korea Institute of Nuclear Safety)
Choi, Yong-Hwan (Korea Institute of Nuclear Safety)
Kim, Kyung-Cho (Korea Institute of Nuclear Safety)
Kang, Sung-Sik (Korea Institute of Nuclear Safety)
Publication Information
Journal of the Korean Society for Nondestructive Testing / v.27, no.3, 2007 , pp. 231-238 More about this Journal
Abstract
Ultrasonic inspection of austenitic steel weldments is a truly difficult task due to complicated wave propagation phenomena such as beam skewing, splitting and distortion. In order to understand these phenomena and design proper inspection procedures, simulation is increasingly paid more attention to. This article addresses a ray tracing based approach to determine incident angle and position of optimal wave mode ultrasonic beam for flaw detection in anisotropic and inhomogeneous austenitic steel weldments. Specially, the optimal mode of ultrasonic wave wave is selected by ray tracing simulation, and an optimization approach based on ray tracing and bi-section search is proposed in order to find the ray path connecting two given points in weldments. With help of this approach, the optimal incident angle and position of ultrasonic beam can be determined for a given flaw position.
Keywords
Ray Tracing; Ultrasound; Austenitic Stainless Steel; Anisotropic; Inhomogenous; Weldment;
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Times Cited By KSCI : 1  (Citation Analysis)
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