Hidden Corrosion Detection in Aircraft Metallic Structures Using Lamb Waves

Journal Article · Sat Apr 09 00:00:00 EDT 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1916814· OSTI ID:20655331

Titry, C; Lepoutre, F ^[1]

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1. ONERA/DMSE-MECS, BP 72, 92322 Chatillon cedex (France)

The corrosion of aeronautics structures in aluminum is difficult to detect at an early stage. Lamb waves are sometimes very sensitive to this damage and can be considered as good candidates for its detection. Unfortunately, the complex time evolution of Lamb wave signals makes difficult both utilization and interpretation of their interaction with defects. This paper demonstrates that, for many reasons, the analysis based on wavelets transform is of great help for recognition of Lamb modes and allows the cartography of corroded areas.

• OSTI ID: 20655331
• Journal Information: AIP Conference Proceedings, Vol. 760, Issue 1; Conference: Conference on review of progress in quantitative nondestructive evaluation, Golden, CO (United States), 25-30 Jul 2004; Other Information: DOI: 10.1063/1.1916814; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
AIRCRAFT
ALUMINIUM
CORROSION
DAMAGE
DEFECTS
DETECTION
EVOLUTION
SOUND WAVES
ULTRASONIC TESTING