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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.19 No.5
- 발행연도
- 2017.1
- 수록면
- 513 - 521 (9page)
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The purpose of this paper is to study the capabilities of the impulse response method in length and flaw detecting for concrete piles and provide a suggested method to find small-size flaws in piles. In this work, wavelet transform is used to decompose the recorded time domain signal into a series of levels. These levels are narrowband, so the mix of different dominant bandwidths can be avoided. In this study, the impulse response method is used to analyze the signal obtained from the wavelet transform to improve the judgment of the flaw signal so as to detect the flaw location. This study provides a new way of thinking in non-destructive testing detection. The results show that the length of a pile is easy to be detected in the traditional reflection time or frequency domain method. However, the small flaws within pile are difficult to be found using these methods. The proposed approach in this paper is able to greatly improve the results of small-size flaw detection within piles by reducing the effects of any noise and clarifying the signal in the frequency domains.
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참고문헌 (25)
참고문헌 신청
Addison, P. S. / 2002 / The Illustrated Wavelet Transform Handbook / Institute of Physics
Baker Jr. / 1991 / Use of nondestructive testing to evaluate defects in drilled shafts / Transportation Research Record 1331:28~35
S.B. Beheshti-Aval / 2011 / Using harmonic class loading for damage identification of plates by wavelet transformation approach / Smart Structures and Systems, An International Journal 8(3):253~274
Berger, J. A. / 1990 / Low strain integrity testing of deep foundations / Proceedings of the 5th Annual Members' Conference
Briaud, J. L. / 2002 / Defect and length predictions by NDT methods for nine bored piles / International Perspective on Theory, Design, Construction., and Performance
Baker Jr. / 1991 / Use of nondestructive testing to evaluate defects in drilled shafts / Transportation Research Record 1331:28~35
S.B. Beheshti-Aval / 2011 / Using harmonic class loading for damage identification of plates by wavelet transformation approach / Smart Structures and Systems, An International Journal 8(3):253~274
Berger, J. A. / 1990 / Low strain integrity testing of deep foundations / Proceedings of the 5th Annual Members' Conference
Briaud, J. L. / 2002 / Defect and length predictions by NDT methods for nine bored piles / International Perspective on Theory, Design, Construction., and Performance
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