한국가스학회지 (Journal of the Korean Institute of Gas)
- 제4권1호
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- Pages.49-54
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- 2000
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- 1226-8402(pISSN)
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- 2713-6922(eISSN)
표면균열 형상측정을 위한 다채널 DCPD 시스템의 개발
Development of Multi-Channel DCPD System for Surface Crack Measurement
- Shim D.J. (School of Mechanical Engineering, Sungkyunkwan University) ;
- Park H.L. (School of Mechanical Engineering, Sungkyunkwan University) ;
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Choi J.B.
(School of Mechanical Engineering, Sungkyunkwan University) ;
- Kim Y.J. (School of Mechanical Engineering, Sungkyunkwan University)
- 발행 : 2000.03.01
초록
구조물에 존재하는 균열을 측정하기 위해 DCPD법이 널리 사용되고 있다. 본 연구를 통해 표면균열의 성장뿐만 아니라 형상변화도 측정 가능한 다채널 DCPD 시스템을 개발하였고, 이를 위한 전용 소프트웨어를 개발하였다. DCPD 시스템을 CT 시편에 적용하여 그 효용성을 검증한 후, 넓은 평판에 존재하는 표면균열 측정실험에 시스템을 적용하였다. 표면균열 성장시 개발한 다채널 DCPD 시스템을 적응함으로써 효과적이고 정확한 균열측정이 가능하다는 결론을 얻었다.
The DCPD(Direct Current Potential Drop) method has been adopted for the crack measurement of a structure. The objective of this paper is to develop a multi-channel DCPD system not only for detecting crack depth, but also for determining the accurate shape of the surface crack. For this purpose, an exclusive software was also developed. In order to verify the developed DCPD system it was initially tested on a CT specimen, and subsequently was applied to a wide plate specimen. The developed multi-channel DCPD system was proven to provide an efficient and accurate measurement of a surface crack during the crack growth.
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