Simulation Research on Defects Detection in Straight Pipes Using Guided Waves
Ultrasonic guided wave provides a suitable fast screening technique that enables the localization of the defects and offers a rough estimation of the defect size in pipes.Using the ANSYS, the entity model of a pipe with defects such as cracks and holes was established in this paper.Then the L(0,2) mode guided wave was excited by exerting symmetric displacement loads on an end of the pipe model.By analyzing the incident wave and the reflected wave of defects, the axial location and circumferential location of the defects can be reached.Besides, by fitting the data with some certain formulas, the relationships between reflection coefficient and the defects extent can be acquired.This new technique is of great significance in nondestructive detection.
Ultrasonic guided wave Nondestructive detection ANSYS
Aiqiang Cui Shaoping Zhou Wenchao Lv Changli Liu
East China University of Science and Technology,Shanghai 200237
国际会议
上海
英文
526-530
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）