Research on Line-scan Inspection Method with Guided Waves
Ultrasonic guided wave can propagate over a long distance and can be used to inspect plate and shell structure. Line-scan method is always applied to guide wave inspection. However, it is a problem how to locate the defects and how to image the inspection results if the through transmission method is used. In order to solve this problem, the imaging method of inspection results with ultrasonic guided waves is studied. The line-scan inspections respectively with pulse echo method and through transmission method are introduced. The X-Y dimension cross product and adding method is finally emphasized on. Defects location and size are solved and the inspection result is imaged when aluminum skin honeycomb core sandwich structure specimen is inspected. The experiment results show that the X-Y dimension cross product and adding method can solve efficiently the problem of defect location and size when through transmission method is used in guided waves line-scan inspection.
Honeycomb core sandwich structure Guided waves X-Y dimensioncross product and adding method
Zhenggan ZHOU Zhanying FENG
School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics,
国际会议
第十七届世界无损检测会议(17th World Conference on Nondestructive Testing)
上海
英文
1142-1149
2008-10-25（万方平台首次上网日期，不代表论文的发表时间）