文献详情
Severity evaluation of the transverse crack in a cylindrical part using a PZT wafer based on an interval energy approach
作者Xiao, Han[1];Zheng, Jiajia[2];Song, Gangbing[3]
文献类型期刊
机构
通讯作者Song, GB (reprint author), Univ Houston, Dept Mech Engn, Smart Mat & Struct Lab, Houston, TX 77204 USA.
期刊名称SMART MATERIALS AND STRUCTURES影响因子和分区
2016
25
3
增刊正刊
收录情况SCI(E)(WOS:000372338600022)  EI(20161002056790)  
期刊等级A2
所属部门机械自动化学院
百度学术Severity evaluation of the transverse crack in a cylindrical part using a PZT wafer based on an interval energy approach
语言外文
ISSN0964-1726
DOI10.1088/0964-1726/25/3/035021
被引频次2
人气指数149
浏览次数35
基金National Natural Science Foundation of China (NSFC) [51105284, 51475339, 51375154]; Chinese Scholarship Council (CSC)
关键词interval energy approach; pulse-echo method; energy factor; cylindrical part; PZT wafer; transverse crack
摘要Transverse cracks in cylindrical parts can be detected by using the ultrasound based pulse-echo method, which has been widely used in industrial applications. However, it is still a challenge to identify the echoes reflected by a crack and bottom surfaces of a cylindrical part due to the multipath propagation and wave mode conversion. In this paper, an interval energy approach is proposed to evaluate the severity of the transverse crack in a cylindrical part. Lead zirconate titanate patch transducers are used to generate the ultrasound pulse and to detect the echoes. The echo signals are preprocessed and divided into two zones, the normal reflection zone and the crack reflection zone. Two energy factors evaluating the severity of the crack are computed based on the interval energy. When using this proposed method, it is not necessary to identify the echo sources since all the crack and boundary echoes are automatically taken into consideration by using the proposed method. The experimental results indicate that proposed approach is more suitable and sensitive to evaluate the transverse crack severity of cylindrical part than the traditional method.
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