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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.20 No.3
- 발행연도
- 2017.1
- 수록면
- 257 - 262 (6page)
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This study aims to develop a signal processing scheme to accurately predict the thickness of concrete slab using air-coupled impact-echo. Air-coupled impact-echo has been applied to concrete non-destructive tests (NDT); however, it is often difficult to obtain thickness mode frequency due to noise components. Furthermore, apparent velocity in concrete is a usually unknown parameter in the field and the thickness of the concrete slab often cannot be accurately measured. This study proposes a signal processing scheme using guided wave analysis, wherein dispersion curves are drawn in both frequency-wave number (f-k) and phase velocity-frequency (V_cp-f) domains. The theoretical and experimental results demonstrate that thickness mode frequency and apparent velocity in concrete are clearly obtained from the f-k and V_cp-f domains, respectively. The proposed method has great potential with regard to the application of air-coupled impact-echo in the field.
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참고문헌 (28)
참고문헌 신청
2015 / Standard Test Method for Measuring the P-Wave Speed and the Thickness of Concrete Plates Using the Impact-Echo Method / ASTM C1383-15, ASTM International
Bjurstrom, H. / 2016 / Detecting the thickness mode frequency in a concrete plate using backward wave propagation / J. Acoust. Soc. Am. 139(2):649~657
Carino, N. J. / 1986 / A point source-point receiver, pulse-wcho technique for flaw detection in concrete / ACI J. 83(2):199~208
Eleni N. Chatzi / 2015 / Online correction of drift in structural identification using artificial white noise observations and an unscented Kalman Filter / Smart Structures and Systems, An International Journal 16(2):295~328
Choi, H. / 2017 / Frequency-wave number domain analysis of air-coupled impact-echo in concrete slab / J. Infrastr. Syst
Bjurstrom, H. / 2016 / Detecting the thickness mode frequency in a concrete plate using backward wave propagation / J. Acoust. Soc. Am. 139(2):649~657
Carino, N. J. / 1986 / A point source-point receiver, pulse-wcho technique for flaw detection in concrete / ACI J. 83(2):199~208
Eleni N. Chatzi / 2015 / Online correction of drift in structural identification using artificial white noise observations and an unscented Kalman Filter / Smart Structures and Systems, An International Journal 16(2):295~328
Choi, H. / 2017 / Frequency-wave number domain analysis of air-coupled impact-echo in concrete slab / J. Infrastr. Syst
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