Nondestructive testing method based on lamb waves for localization and   extent of damage

doi:10.1016/j.camss.2016.06.001

CORC > 北京大学 > 工学院

	Nondestructive testing method based on lamb waves for localization and extent of damage
	Chen, Jianlin ; Li, Zheng ; Gong, Kezhuang
刊名	ACTA MECHANICA SOLIDA SINICA
	2017
关键词	Lamb wave Damage detection Cross correlation PZT wafer Aluminum plate INSPECTION
DOI	10.1016/j.camss.2016.06.001
英文摘要	Based on Lamb wave analysis of propagation in plate-like structures, a damage detection method is proposed that not only locates the position of the damage accurately but also estimates its size. Similar damage detection methods focus only on localization giving no quantitative estimation of extent. To improve detection, we propose two predictive circle methods for size estimation. Numerical simulations and experiments were performed for an aluminum plate with a hole. Two PZT configurations of different sizes were designed to excite and detect Lamb waves. From cross-correlation analysis, the damage location and extent can be determined. Results show that the proposed method enables a better quantitative resolution in detection, the size of the inspection area influences the accuracy of damage identification, and the closer is the inspected area to the damage, the more accurate are the results. The method proposed can be developed into a multiple-step detection method for multi-scale analysis with prospective accuracy. (C) 2017 Published by Elsevier Ltd on behalf of Chinese Society of Theoretical and Applied Mechanics.; National Natural Science Foundation of China [11172003, 11521202]; SCI(E); 中国科学引文数据库(CSCD); ARTICLE; 1; 65-74; 30
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/475250]
专题	工学院
推荐引用方式 GB/T 7714	Chen, Jianlin,Li, Zheng,Gong, Kezhuang. Nondestructive testing method based on lamb waves for localization and extent of damage[J]. ACTA MECHANICA SOLIDA SINICA,2017.
APA	Chen, Jianlin,Li, Zheng,&Gong, Kezhuang.(2017).Nondestructive testing method based on lamb waves for localization and extent of damage.ACTA MECHANICA SOLIDA SINICA.
MLA	Chen, Jianlin,et al."Nondestructive testing method based on lamb waves for localization and extent of damage".ACTA MECHANICA SOLIDA SINICA (2017).