Tip Location Determination of Exposed and Filled Cracks using Microwaves

Abstract

Detection of exposed and filled fatigue/surface cracks on metal surfaces is an important practical issue. Recent approaches have shown the potential of detecting filled cracks and cracks covered with dielectric coatings. An important issue associated with these investigations is locating the tip of a crack. This is particularly important from a repair point of view. Open-ended rectangular waveguide probes are used to locate the tip of exposed and filled cracks. The results of several measurements will be discussed in this paper including the accuracy by which the tip may be located.

Department(s)

Electrical and Computer Engineering

Keywords and Phrases

Coatings; Dielectric Materials; Fatigue Of Materials; Microwaves; Probes; Rectangular Waveguides; Crack Detection; Dielectric Coatings; Rectangular Waveguide Probes; Cracks; Crack Tip; Fatigue Cracks; Filled Cracks; Microwave NDE

International Standard Serial Number (ISSN)

0255-5476

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1996 Trans Tech Publications, All rights reserved.

Publication Date

01 May 1996

Link to Full Text

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