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http://dx.doi.org/10.7234/composres.2016.29.5.288

Nondestructive Evaluation Technique of Painted Sandwich Control Surfaces of CN-235 using Full-field Pulse-echo Ultrasonic Propagation Imaging System  

Hong, Seung-Chan (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)
Park, Jongwoon (ATRI, Air Force Logistics Command, Korea Air Force)
Publication Information
Composites Research / v.29, no.5, 2016 , pp. 288-292 More about this Journal
Abstract
In this paper, a novel ultrasonic propagation imaging system, called a full-field pulse-echo ultrasonic propagation imaging (FF PE UPI) system is introduced. The system nondestructively inspected targets with two-axis translation stage. The coincident laser beams for ultrasonic sensing and generation are scanned and pulse-echo mode laser ultrasounds are captured. This procedure makes it possible to generate full-field ultrasound in through-the-thickness direction as large as the scan area. Structural inspection results in the form of full-field ultrasonic wave propagation videos are introduced, which are painted sandwich control surfaces. In addition, the inspection results of FF PE UPI system are compared with conventional ultrasonic testing methods such as waterjet and portable C-scan.
Keywords
Nondestructive evaluation; Laser ultrasonic; Composite damage; Pulse-echo mode laser ultrasound; Full-field pulse-echo ultrasonic wave propagation imaging; Damage visualization;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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