首页   按字顺浏览 期刊浏览 卷期浏览 Scanning Laser Vibrometry for Lamb Wave Evaluation of Composite Tubulars
Scanning Laser Vibrometry for Lamb Wave Evaluation of Composite Tubulars

 

作者: K. MASLOV,   V.K. KINRA,  

 

期刊: Nondestructive Testing and Evaluation  (Taylor Available online 1998)
卷期: Volume 15, issue 6  

页码: 395-409

 

ISSN:1058-9759

 

年代: 1998

 

DOI:10.1080/10589750008952881

 

出版商: Taylor & Francis Group

 

关键词: Nondestructive evaluation;Long-range inspection;Piping and pipelines;Composite materials;Lamb waves;Laser ultrasonics

 

数据来源: Taylor

 

摘要:

This paper is concerned with the development of a technique for long-range ultrasonic nondestructive inspection of composite tubulars. A dry-contact piezoelectric transducer is used to excite Lamb waves in the axial direction. The field scattered by a defect and/or the mode shape distortion caused by the defect is measured by the use of a laser vibrometer. The presence of the defect is indicated by anomalies in the scattered field. The technique was tested on glass/epoxy composite tubes. It is shown that the presence of a defect (for example, a delamination of I ern diameter) can be remotely detected as far away as one meter from the transmitter, and its position can be located with an accuracy of a few centimeters.

 

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