In this paper, continuous wavelet transform has been performed to extract the inner crack information from the guided waves in cantilever beams, and the location and size of crack can be detected exactly. Considering its best time‐frequency property, Gabor continuous wavelet transform is employed to analyze the complicated flexible wave signals in cantilever beam, which is inspirited by an impact on the free end. Otherwise, in order to enhance the sensitivity of detection for some small cracks, an improved method is discussed. Here, both computational and experimental methods are carried out for comparing the influence of different crack location in beam. Therefore, the method proposed can be expected to expand to a powerful damage detection method in a broad engineering application.
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28 February 2008
REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION: 34th Annual Review of Progress in Quantitative Nondestructive Evaluation
22–27 July 2007
Golden (Colorado)
Research Article|
February 28 2008
INNER CRACK DETECTION METHOD FOR CANTILEVER BEAMS
Zheng Li;
Zheng Li
College of Engineering, Peking University, Beijing 100871, China
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Wei Zhang;
Wei Zhang
College of Engineering, Peking University, Beijing 100871, China
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Yixuan Li;
Yixuan Li
College of Engineering, Peking University, Beijing 100871, China
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Xianyue Su
Xianyue Su
College of Engineering, Peking University, Beijing 100871, China
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Zheng Li
Wei Zhang
Yixuan Li
Xianyue Su
College of Engineering, Peking University, Beijing 100871, China
AIP Conf. Proc. 975, 594–601 (2008)
Citation
Zheng Li, Wei Zhang, Yixuan Li, Xianyue Su; INNER CRACK DETECTION METHOD FOR CANTILEVER BEAMS. AIP Conf. Proc. 28 February 2008; 975 (1): 594–601. https://doi.org/10.1063/1.2902715
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