Defect detection and characterization in power plant tubing using ultrasonic guided waves

被引：0
|
作者：
Shin, HJ
Yi, R
Rose, JL
机构：
来源：
TRENDS IN NDE SCIENCE AND TECHNOLOGY - PROCEEDINGS OF THE 14TH WORLD CONFERENCE ON NDT (14TH WCNDT), VOLS 1-5 | 1996年
关键词：
D O I：
暂无
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The purpose of this study is to develop the utility of ultrasonic guided waves in tubing inspection. Major emphasis is placed on the practical implementation of an ultrasonic inspection system for heat exchanger and steam generator tubing. For the experimental study, a specially designed ultrasonic bore probe is used to generate and receive high power tone burst signals. Theoretically calculated dispersion curves form the basis for identifying the proper modes for inspection. Successful implementation of various mode selection criteria shows the capability of guided waves when used in conjunction with frequency tuning and particle displacement distribution optimization. The large distance tube and U-bend tube inspection capability of ultrasonic guided waves was demonstrated. Sample results for tubing inspection includes the detection of standard notches and overall inspection results for 4.75m long stainless steel heat exchanger tubes. Finally, classification and characterization potential of flaws in tubing using pattern recognition is introduced.
引用
收藏
页码：2299 / 2302
页数：4
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