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
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.78 No.5
- 발행연도
- 2021.1
- 수록면
- 599 - 610 (12page)
이용수
초록· 키워드
오류제보하기
Early detection of small concrete crack or reinforcement corrosion is necessary for Structural Health Monitoring (SHM). Global vibration based methods are advantageous over local methods because of simple equipment installation and cost efficiency. Among vibration based techniques, FRF based methods are preferred over modal based methods. In this study, a new coupled method using frequency response function (FRF) and proper orthogonal modes (POM) is proposed by using the dynamic characteristic of a damaged beam. For the numerical simulation, wave finite element (WFE), coupled with traditional finite element (FE) method is used for effectively incorporating the damage related information and faster computation. As reported in literature, hybrid combination of wave function based wave finite element method and shape function based finite element method can addresses the mid frequency modelling difficulty as it utilises the advantages of both the methods. It also reduces the dynamic matrix dimension. The algorithms are implemented on a three-dimensional reinforced concrete beam. Damage is modelled and studied for two scenarios, i.e., crack in concrete and rebar corrosion. Single and multiple damage locations with different damage length are also considered. The proposed methodology is found to be very sensitive to both single- and multiple- damage while being computationally efficient at the same time. It is observed that the detection of damage due to corrosion is more challenging than that of concrete crack. The similarity index obtained from the damage parameters shows that it can be a very effective indicator for appropriately indicating initiation of damage in concrete structure in the form of spread corrosion or invisible crack.
목차
등록된 정보가 없습니다.
참고문헌 (45)
참고문헌 신청
Alamdari, M. M. / 2013 / Nonlinear joint model updating in assembled structures / J. Eng. Mech 140(7):04014042
Seyed Ahdiye Bagherahmadi / 2018 / Structural damage detection using a damage probability index based on frequency response function and strain energy concept / Structural Engineering and Mechanics, An Int＇l Journal 67(4):327~336
Banjara, N. K. / 2020 / Machine learning supported acoustic emission technique for leakage detection in pipelines / Int. J. Press. Ves. Pip. 188:104243
Brillouin, L. / 1953 / Wave Propagation in Periodic Structures / Dover Publications
Castaldo, P. / 2019 / Safety formats for non-linear finite element analysis of reinforced concrete structures : discussion, comparison and proposals / Eng. Struct 193:136~153
Seyed Ahdiye Bagherahmadi / 2018 / Structural damage detection using a damage probability index based on frequency response function and strain energy concept / Structural Engineering and Mechanics, An Int＇l Journal 67(4):327~336
Banjara, N. K. / 2020 / Machine learning supported acoustic emission technique for leakage detection in pipelines / Int. J. Press. Ves. Pip. 188:104243
Brillouin, L. / 1953 / Wave Propagation in Periodic Structures / Dover Publications
Castaldo, P. / 2019 / Safety formats for non-linear finite element analysis of reinforced concrete structures : discussion, comparison and proposals / Eng. Struct 193:136~153
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