文献类型：期刊文献

英文题名：Characterization of Surface-Breaking Cracks on Tubular Structures Using Ultrasonic Phased Array with Rayleigh Waves

作者：Xiao, Jing[1];Hu, Yue[1,2];Cao, Shuai[1];Cui, Fangsen[1]

机构：[1]ASTAR, Inst High Performance Comp Agcy Sci, Singapore 138632, Singapore;[2]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2023

卷号：20

期号：06

外文期刊名：INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS

收录：;EI(收录号：20221712011514);WOS:【SCI-EXPANDED(收录号:WOS:000849411300002)】；

基金：This work is further developed based on the original work presented at ICCM2021. This research work is supported by Science & Engineering Research Council, Agency for Science, Technology and Research, Singapore, under its industry alignment fund-pre-positioning programme (IAF-PP) (Grant No. A19F1a0104 and Grant No. A20F5a0043).

语种：英文

外文关键词：Tubular structure; surface acoustic wave; ultrasonic phased array; surface-breaking crack

摘要：Surface-breaking cracks are typical defects in tubular structures. Compared with other types of defects such as internal voids, surface cracks often impose more serious threats to structural integrity. This study presents an approach to detect and characterize surface-breaking cracks on tubular samples through the use of ultrasonic phased array technology with surface acoustic waves (SAWs). A Rayleigh type surface wave is selected in our work as it is nondispersive and highly sensitive to surface and subsurface defects. Finite element (FE) analysis is used to simulate the interaction between Rayleigh waves and surface-breaking cracks with varying depths, inclined angles and profiles. The reflection coefficient of Rayleigh waves is calculated based on simulation results and fitted to a proper model. Crack depths and inclined angles can be evaluated from the fitted curves. Furthermore, a full matrix capture (FMC) data acquisition strategy is simulated in FE models with phased array to collect pulse-echo signals of Rayleigh waves. An array imaging algorithm is applied to FMC data and adapted to curved surface. The profile and location of surface cracks are reconstructed from imaging results. The configuration of phased array is optimized to increase the resolution of the method. The proposed approach is validated numerically and provides an efficient way to measure the length, depth and inclined angle of surface-breaking cracks on tubular component.