지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2013.10
- 수록면
- 459 - 464 (6page)
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초록· 키워드
오류제보하기
Structures can be evaluated their health status by allowable loading criteria. These criteria can be determined by the maximum strain. Therefore, in order to detect this maximum strain of structures, fiber optic Bragg grating(FBG) sensor probes are newly designed and fabricated to perform the memorizing detection even if the sensor system is on-and-off. The probe is constructed with an FBG optical fiber embedded in silver epoxy. When the load is applied and removed on the structure, the residual strain remains in the silver epoxy to memorize the maximum strain effect. In this study, a commercial Al-foil bonded FBG sensor probe was tested to investigate the detection feasibility at first. FBG sensor probes with silver epoxy were fabricated as three different sizes. The detection feasibility of maximum strain was studied by doing the tensile tests of CFRP specimens bonded with these FBG sensor probes. It was investigated the sensitivity coefficient defined as the maximum strain divided by the residual strain. The highest sensitivity was 0.078 of the thin probe having the thickness of 2 mm.
목차
Abstract
1. Introduction
2. Detection Principle of an FBG Probe with Silver Epoxy
3. Feasibility Study Using an Al-Foil Bonded FBG Probe
4. Detection Sensitivity of FBG Probes Embedded in Silver Epoxy
5. Conclusion
References
참고문헌 (8)
참고문헌 신청
1. [학술지(정기간행물)] - S. C. Her / 2011 / Effect of coating on the strain transfer of optical fiber sensors / Sensors 11 (7) : 6926 ~ 6941
2. [학술지(정기간행물)] - F. Ansari / 1998 / Mechanics of bond and interface shear transfer in optical fiber sensors / Journal of Engineering Mechanics 124 (1) : 358 ~ 394
3. [학술지(정기간행물)] - Q. Li / 2003 / Effect of the plastic coating on strain measurement of concrete by fiber optic sensor / Measurement 34 (3) : 215 ~ 227
4. [학술지(정기간행물)] - A. Othonos / 1997 / Fiber Bragg gratings / Rev. Sci. Instrum 68 (12) : 4309 ~ 4341
5. [학술지(정기간행물)] - R. R. Kumar / 2008 / Performances evaluation of metalcoated fiber Bragg grating sensors for sensing cryogenic temperature / Cryogenics 48 : 142 ~ 148
2. [학술지(정기간행물)] - F. Ansari / 1998 / Mechanics of bond and interface shear transfer in optical fiber sensors / Journal of Engineering Mechanics 124 (1) : 358 ~ 394
3. [학술지(정기간행물)] - Q. Li / 2003 / Effect of the plastic coating on strain measurement of concrete by fiber optic sensor / Measurement 34 (3) : 215 ~ 227
4. [학술지(정기간행물)] - A. Othonos / 1997 / Fiber Bragg gratings / Rev. Sci. Instrum 68 (12) : 4309 ~ 4341
5. [학술지(정기간행물)] - R. R. Kumar / 2008 / Performances evaluation of metalcoated fiber Bragg grating sensors for sensing cryogenic temperature / Cryogenics 48 : 142 ~ 148
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UCI(KEPA) : I410-ECN-0101-2014-500-002637396