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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.23 No.2
- 발행연도
- 2019.1
- 수록면
- 173 - 184 (12page)
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초록· 키워드
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The main objective of this study is to evaluate the true fracture energy and monitor the damage progression in steel fibre reinforced concrete (SFRC) specimens using acoustic emission (AE) features. Four point bending test is carried out using pre-notched plain and fibre reinforced (0.5% and 1% volume fraction) - concrete under monotonic loading. AE sensors are affixed at different locations of the specimens and AE parameters such as rise time, AE energy, hits, counts, amplitude and duration etc. are obtained. Using the captured and processed AE event data, fracture process zone is identified and the true fracture energy is evaluated. The AE data is also employed for tracing the damage progression in plain and fibre reinforced concrete, using both parametric- and signal- based techniques. Hilbert - Huang transform (HHT) is used in signal based processing for evaluating instantaneous frequency of the acoustic events. It is found that the appropriately processed and carefully analyzed acoustic data is capable of providing vital information on progression of damage on different types of concrete.
목차
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참고문헌 (33)
참고문헌 신청
H. M. Abdalla / 2003 / Determination of size-independent specific fracture energy of concrete from three-point bend and wedge splitting tests / Magazine of Concrete Research 55(2):133~141
D.G. Aggelis / 2011 / Acoustic emission characterization of the fracture process in fibre reinforced concrete / Construction and Building Materials 25(11):4126~4131
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
S.Y. Alam / 2012 / Monitoring size effect on crack opening in concrete by digital image correlation / European Journal of Environmental and Civil Engineering 16(7):818~836
Barsoum, F. F. / 2009 / Acoustic emission monitoring and fatigue life prediction in axially loaded notched steel specimens / J. Acoust. Emission 27:40~63
D.G. Aggelis / 2011 / Acoustic emission characterization of the fracture process in fibre reinforced concrete / Construction and Building Materials 25(11):4126~4131
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
S.Y. Alam / 2012 / Monitoring size effect on crack opening in concrete by digital image correlation / European Journal of Environmental and Civil Engineering 16(7):818~836
Barsoum, F. F. / 2009 / Acoustic emission monitoring and fatigue life prediction in axially loaded notched steel specimens / J. Acoust. Emission 27:40~63
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