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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.27 No.3
- 발행연도
- 2021.1
- 수록면
- 407 - 419 (13page)
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This article presents the damage evaluation and pattern recognition for the newly proposed fiber reinforced polymer (FRP)/steel-confined reinforced concrete columns. The interaction of FRP material, steel tube, and reinforced concrete lead to complex damage mechanisms and invisible damage modes. The prevailing acoustic emission (AE) technique was applied to monitor the damage process and detect the sheltered damages under cyclic loading. Characteristic AE parameters, such as energy and duration, were extracted to disclose the damage evolution and evaluate the damage state. Three typical damage stages were identified. The fuzzy C.means (FCM) algorithm and particle swarm optimization (PSO) algorithm were applied as efficient clustering tools to discriminate different damage signals of FRP/steel-confined RC columns. Five types of damage mechanisms were identified and illustrated based on the statistical analysis of typical AE features. Furthermore, typical damage waveforms were extracted, the frequency content of each damage signal was discussed on the basis of wavelet transform.
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참고문헌 (33)
참고문헌 신청
Dimitrios G. Aggelis / 2016 / Monitoring the failure mechanisms of a reinforced concrete beam strengthened by textile reinforced cement using acoustic emission and digital image correlation / Smart Structures and Systems, An International Journal 17(1):91~105
David L. Davies / 1979 / A Cluster Separation Measure / IEEE Transactions on Pattern Analysis and Machine Intelligence 1(2):224~227
Peter J. de Groot / 1995 / Real-time frequency determination of acoustic emission for different fracture mechanisms in carbon/epoxy composites / Composites Science and Technology 55(4):405~412
R. Gutkin / 2011 / On acoustic emission for failure investigation in CFRP: Pattern recognition and peak frequency analyses / Mechanical Systems and Signal Processing 25(4):1393~1407
Liang Huang / 2016 / Behavior of hybrid GFRP–perforated-steel tube-encased concrete column under uniaxial compression / Composite Structures 142:313~324
David L. Davies / 1979 / A Cluster Separation Measure / IEEE Transactions on Pattern Analysis and Machine Intelligence 1(2):224~227
Peter J. de Groot / 1995 / Real-time frequency determination of acoustic emission for different fracture mechanisms in carbon/epoxy composites / Composites Science and Technology 55(4):405~412
R. Gutkin / 2011 / On acoustic emission for failure investigation in CFRP: Pattern recognition and peak frequency analyses / Mechanical Systems and Signal Processing 25(4):1393~1407
Liang Huang / 2016 / Behavior of hybrid GFRP–perforated-steel tube-encased concrete column under uniaxial compression / Composite Structures 142:313~324
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