비파괴검사학회지 (Journal of the Korean Society for Nondestructive Testing)

  • 제23권5호
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  • Pages.445-454
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  • 2003
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  • 1225-7842(pISSN)
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  • 2287-402X(eISSN)
한국비파괴검사학회 (The Korean Society for Nondestructive Testing)
권호 표지

압전세라믹 센서와 광섬유 센서를 이용한 복합재 구조물의 건전성 모니터링

Health Monitoring in Composite Structures using Piezoceramic and fiber Optic Sensors

  • 김천곤 (한국과학기술원 기계공학과 항공우주공학) ;
  • 성대운 (현대자동차연구소) ;
  • 김대현 (한국과학기술원 기계공학과 항공우주공학) ;
  • 방형준 (한국과학기술원 기계공학과 항공우주공학)
  • Kim, C.G. (Dept. of Aerospace Engineering, Korea Advanced Institute of Science and Technology) ;
  • Sung, D.U. ;
  • Kim, D.H. (Dept. of Aerospace Engineering, Korea Advanced Institute of Science and Technology) ;
  • Bang, H.J. (Dept. of Aerospace Engineering, Korea Advanced Institute of Science and Technology)
  • 발행 : 2003.10.30
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초록

구조건전성 모니터링은 복합재 구조물이 운용되는 단계에서뿐만 아니라 설계 및 제작단계에서도 중요한 관심사가 되고 있다. 과도한 하중이나 저속충격은 모재균열이나 층간분리와 같은 복합재 파손의 원인이 될 수 있으며 이러한 손상은 구조물의 하중지지성능을 저하시키게 된다. 지능형 복합재 구조물에서의 구조건전성 모니터링기술의 개발은 항공기와 길은 복합재 구조물의 안전성 향상에 도움이 될 수 있다 본 연구에서는 압전세라믹 센서 및 광섬유 센서를 복합재 구조물의 건전성 모니터링에 적용하였으며 파손신호의 특징파악 틴 충격위치 검출을 위한 신호처리 방법을 제안하였다.

Health monitoring is a major concern not only in the design and manufacturing but also in service stages for composite laminated structures. Excessive loads or low velocity impact can cause matrix cracks and delaminations that may severely degrade the load carrying capability of the composite laminated structures. To develop the health monitoring techniques providing on-line diagnostics of smart composite structures can be helpful in keeping the composite structures sound during their service. In this study, we discuss the signal processing techniques and some applications for health monitoring of composite structures using piezoceramic sensors and fiber optic sensors.

키워드

참고문헌

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