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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.15 No.4
- 발행연도
- 2015.1
- 수록면
- 997 - 1,018 (22page)
이용수
초록· 키워드
오류제보하기
Structural health monitoring along with damage detection and assessment of its severity level innon-accessible reinforced concrete members using piezoelectric materials becomes essential since engineersoften face the problem of detecting hidden damage. In this study, the potential of the detection of flexuraldamage state in the lower part of the mid-span area of a simply supported reinforced concrete beam usingpiezoelectric sensors is analytically investigated. Two common severity levels of flexural damage areexamined: (i) cracking of concrete that extends from the external lower fiber of concrete up to the steelreinforcement and (ii) yielding of reinforcing bars that occurs for higher levels of bending moment and afterthe flexural cracking. The purpose of this investigation is to apply finite element modeling using admittancebased signature data to analyze its accuracy and to check the potential use of this technique to monitorstructural damage in real-time. It has been indicated that damage detection capability greatly depends on thefrequency selection rather than on the level of the harmonic excitation loading. This way, the excitationloading sequence can have a level low enough that the technique may be considered as applicable andeffective for real structures. Further, it is concluded that the closest applied piezoelectric sensor to theflexural damage demonstrates higher overall sensitivity to structural damage in the entire frequency band forboth damage states with respect to the other used sensors. However, the observed sensitivity of the othersensors becomes comparatively high in the peak values of the root mean square deviation index.
목차
등록된 정보가 없습니다.
참고문헌 (36)
참고문헌 신청
Bentz, E. / 2000 / Response-2000 Reinforced Concrete Sectional Analysis Using the Modified Compression Field Theory, Version 1.0.5, Software Package / University of Toronto
Bhalla, S. / 2004 / Structural health monitoring by piezo-impedance transducers I : modelling / J. Aerospace Eng 17(4):154~165
The COMSOL Group / Stockholm, Sweden
Giurgiutiu, V / 1998 / Recent advancements in the electro-mechanical (E/M) impedance method for structural health monitoring and NDE / Proceedings of the SPIE, The International Society for Optical Engineering 3329:536~547
Giurgiutiu, V. / 2002 / Embedded self-sensing piezoelectric active sensors for on-line structural identification / J. Vib. Acoust 124(1):116~125
Bhalla, S. / 2004 / Structural health monitoring by piezo-impedance transducers I : modelling / J. Aerospace Eng 17(4):154~165
The COMSOL Group / Stockholm, Sweden
Giurgiutiu, V / 1998 / Recent advancements in the electro-mechanical (E/M) impedance method for structural health monitoring and NDE / Proceedings of the SPIE, The International Society for Optical Engineering 3329:536~547
Giurgiutiu, V. / 2002 / Embedded self-sensing piezoelectric active sensors for on-line structural identification / J. Vib. Acoust 124(1):116~125
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