Fatigue crack growth monitoring of welded tubular structures using piezoelectric film acoustic emission sensor

被引：0
|
作者：
Zhang, Y. [1 ]
Zhou, C. [2 ]
Tong, L. W. [3 ]
机构：
[1] Univ Maryland, Dept Civil & Environm Engn, College Pk, MD 20742 USA
[2] SOM, New York, NY USA
[3] Tongji Univ, Coll Civil Engn, Shanghai, Peoples R China
来源：
BRIDGE MAINTENANCE, SAFETY, MANAGEMENT AND LIFE EXTENSION | 2014年
基金：
美国国家科学基金会;
关键词：
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper presents the experimental results of acoustic emission (AE) strain signals measured by piezoelectric film AE sensors due to fatigue crack growth in full-scale steel welded joint specimens. Piezoelectric film AE sensor has a potential to monitor the growth of fatigue crack, which can be used for fatigue remaining useful life prognosis. Piezoelectric film AE sensor using flexible piezoelectric paint conforms well to curved surface because of its flexibility - making it very promising for use on tubular steel structures, for which conventional sensors are ill equipped to do. This study explores the use of piezoelectric paint film AE sensor for continuous monitoring of fatigue crack growth in welded tubular joints.
引用
收藏
页码：559 / 565
页数：7
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