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Proceedings Paper

Influence of flange, frequency, and liftoff on microwave detection of stress-induced fatigue cracks using open-ended rectangular waveguides
Author(s): Nasser Qaddoumi; Emarit Ranu; Philip I. Stepanek; Radin Mirshahi; Reza Zoughi; J. David McColskey; Richard A. Livingston
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Paper Abstract

The influence of the waveguide flange, frequency of operation and liftoff on crack detection sensitivity using the dominant mode as well as the higher-order mode approaches are presented. The results indicate that the optimal choice of these parameters can significantly enhance crack detection sensitivity in practical applications.

Paper Details

Date Published: 31 March 1998
PDF: 8 pages
Proc. SPIE 3396, Nondestructive Evaluation of Materials and Composites II, (31 March 1998); doi: 10.1117/12.301525
Show Author Affiliations
Nasser Qaddoumi, Colorado State Univ. (United States)
Emarit Ranu, Colorado State Univ. (United States)
Philip I. Stepanek, Colorado State Univ. (United States)
Radin Mirshahi, Colorado State Univ. (United States)
Reza Zoughi, Colorado State Univ. (United States)
J. David McColskey, National Institute of Standards and Technology (United States)
Richard A. Livingston, Federal Highway Administration (United States)


Published in SPIE Proceedings Vol. 3396:
Nondestructive Evaluation of Materials and Composites II
Steven R. Doctor; Carol A. Nove; George Y. Baaklini, Editor(s)

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