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.
Recommended Citation
N. N. Qaddoumi et al., "Influence of Flange, Frequency and Liftoff on Microwave Detection of Stress Induced Fatigue Cracks using Open-Ended Rectangular Waveguides," Proceedings of Nondestructive Evaluation of Materials and Composites II (1998, San Antonio, TX), vol. 3396, pp. 208 - 215, SPIE--The International Society for Optical Engineering, Apr 1998.
The definitive version is available at https://doi.org/10.1117/12.301525
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.
Publication Date
01 Apr 1998
