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Nondestructive Inspection of Launch Vehicle Structural Components  

Kong, Cheol-Won (Korea Aerospace Research Institute)
Youn, Jong-Hoon (Korea Aerospace Research Institute)
Park, Jae-Sung (Korea Aerospace Research Institute)
Eun, Se-Won (Korea Aerospace Research Institute)
Jang, Young-Soon (Korea Aerospace Research Institute)
Yi, Yeong-Moo (Korea Aerospace Research Institute)
Publication Information
Journal of the Korean Society for Nondestructive Testing / v.29, no.4, 2009 , pp. 331-337 More about this Journal
Abstract
Space launch vehicles require highly reliable, lightweight structures. It is thus important to monitor the structural health of these components with nondestructive inspections. In this paper, we studied an example of a nondestructive inspection that was partially applied to the manufacture and inspection of a launch vehicle. Ultrasonic tests, X-rays, tapping, and acoustic emissions comprised the inspection method. A payload fairing, high pressure tank, fastener part, and bonding part were used as hardware to be inspected. We proposed a quantitative standard for debonding inspection of the payload fairing and acoustic emission data for the proof test of the high pressure tank. We analyzed the fracture mode of the sandwich fastener part according to frequency changes. We also proposed a standard specimen for ultrasonic inspection of bonds of different materials. The present analyses and results provide data for evaluation of the launch operation sequence to ensure launch vehicles afford high reliability.
Keywords
Space Launch Vehicle; Structural Health; Ultrasonic Inspection; Acoustic Emission; Fracture Mode;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 공철원, 은세원, 이종웅, 남기원, 장영순, 이영무, 조광래, 'KSLV-I 페이로드 페어링 지상 개발 시험 결과', 제10회 우주 발사체 기술 심포지움, pp. 37-40, (2009)
2 Kai-Da Zhang and Charles E. S. Ueng, 'Stress around a pin-loaded hole in orthotropic plates,' Journal of Composite Materials, Vol. 18, pp. 432-446, (1984)   DOI   ScienceOn
3 박재성, 김광수, 이호성, '복합재료 적층 구조물의 음향방출 특성 연구', 한국복합재료학회지, 제16권, 제6호, pp. 16-22, (2003)   과학기술학회마을
4 A. A. Pollck, 'Acoustic emission inspection,' Metals Handbook, 9th edition, Vol. 17, ASM International, pp. 278-294, (1989)
5 공절원, 은세원, 박재성, 장영순, 이호성, 이영무, 조광래, '하나콤 코아가 복합제 샌드위치 물성에 미치는 영향', 제5회 우주 발사체 기술 심포지움, pp. 287-291, (2004)
6 L. Dong and J. Mistry, 'Acoustic emission monitoring of composite cylinders,' Composite Structures, Vol. 40, No.1, pp. 43-53, (1998)
7 F. K. Chang, R. A. Scott and G. S. Springer, 'Strength of mechanically fastened composite joints,' Journal of Composite Materials, Vol. 16, pp. 470-494, (1982)   DOI   ScienceOn
8 박재성, 김광수, 윤종훈, 이영무, '음향방출(AE) 신호 측정을 통한 구조물의 건전성 감시', 제4회 우주 발사체 기술 심포지움, pp. 205-208, (2003)