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	Inner crack detection method for cantilever beams
	Li, Zheng ; Zhang, Wei ; Li, Yixuan ; Su, Xianyue
	2008
关键词	continuous wavelet transform damage detection stress wave beam DAMAGE DETECTION
英文摘要	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.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000254553700075&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Materials Science, Multidisciplinary; Physics, Applied; CPCI-S(ISTP); 0
语种	英语
内容类型	会议论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/316600]
专题	工学院
推荐引用方式 GB/T 7714	Li, Zheng,Zhang, Wei,Li, Yixuan,et al. Inner crack detection method for cantilever beams[C]. 见:.

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