Title

Influence of Flange, Frequency and Liftoff on Microwave Detection of Stress Induced Fatigue Cracks using Open-Ended Rectangular Waveguides

Abstract

The influence of the waveguide flange, frequency of operation and liftoff on crack detection sensitivity was studied by using microwave nondestructive inspection methods. The presence of a flange at a waveguide aperture provided two extra signal peaks which increased crack detection sensitivity. The results showed that the optimal choice of these parameters could significantly enhance the crack detection sensitivity in practical applications.

Meeting Name

Nondestructive Evaluation of Materials and Composites II (1998: Mar. 31-Apr. 1, San Antonio, TX)

Department(s)

Electrical and Computer Engineering

Keywords and Phrases

Cracks; Nondestructive Examination; Rectangular Waveguides; Stress Analysis; Fatigue Surface Breaking Cracks; Surface Phenomena; Dominant Mode; Higher-Order Mode; Microwave Techniques

International Standard Serial Number (ISSN)

0277-786X

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1998 SPIE--The International Society for Optical Engineering, All rights reserved.

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