Millimeter Wave Depth and Opening Characterization of Surface Damage in Fuselage Skins
Aircraft fuselage skins are susceptible to damage which can negatively impact corrosion resistance and/or fatigue life. Characterization of damage, in particular its depth, can be a critically useful information when making repair decisions. A near-field millimeter wave swept-frequency reflectometry method is presented with potential for characterizing the dimensions of a pit or a scratch. This paper presents the foundation of the technique, results of comprehensive electromagnetic simulations, some corresponding experimental results, and correlation of scratch signal characteristics to depth and opening dimensions.
A. D. McClanahan et al., "Millimeter Wave Depth and Opening Characterization of Surface Damage in Fuselage Skins," Proceedings of the Review of Progress in Quantitative Nondestructive Evaluation (2008, Chicago, IL), vol. 1096, pp. 394-401, American Institute of Physics (AIP), Jul 2009.
The definitive version is available at http://dx.doi.org/10.1063/1.3114254
Review of Progress in Quantitative Nondestructive Evaluation (2008: Jul. 20-25, Chicago, IL)
Electrical and Computer Engineering
Keywords and Phrases
Aircraft; Millimeter Wave; Scratches; Sizing
International Standard Serial Number (ISSN)
Article - Conference proceedings
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