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http://dx.doi.org/10.7234/composres.2018.31.5.246

Corner Inspection of Autoclave-cured L-shaped Composite Structure using Pulse-echo Rotation Scanning Scheme based on Laser Ultrasonic  

Lee, Young-Jun (Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology)
Lee, Jung-Ryul (Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology)
Hong, Sung-Jin (Materials & Processes Team, Korea Aerospace Industries, LTD.)
Publication Information
Composites Research / v.31, no.5, 2018 , pp. 246-250 More about this Journal
Abstract
In this paper, laser ultrasonic rotation scanning method was proposed to inspect and visualize defects in corner section of curved composite structure. L-shaped composite specimen with defects in its corner section were inspected using laser ultrasonic rotation scanning method. L-shaped specimens had artificial defects at three different depths to simulate delamination damage. All artificial defects were detected clearly in different time-of-flight according to their depths. Inspection result showed that the proposed method is suitable to inspect round corner section of curved composite structure without any special tools.
Keywords
Rotation Scan; Laser ultrasonic; Curved composite structure; Ultrasonic propagation imaging; Corner inspection;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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