Ultrasonic Guided Wave Tomography of Pipes
Ultrasonic guided wave tomography has been shown to be an effective nondestructive evaluation technique for pipe-like structures. Guided waves propagating in pipe with damage are simulated using the finite element and the first arrival times of the received signals are extracted as input data of tomography. Alterative reconstruction technique (ART) is used to modify the slowness value of each grid unit in ray tracing. Tomographic reconstructions are performed for damages of different positions and shapes in pipes. The results show that guided wave tomography can depict accurately the locations and sizes of the damages.
Zhang Haiyan Chen Xianhua Yu Jianbo Cao Yaping
School of Communication and Information Engineering, Shanghai University, Shanghai 200072
国际会议
上海
英文
1729-1733
2010-11-23（万方平台首次上网日期，不代表论文的发表时间）