
Proceedings Paper
Aircraft components structural health monitoring using flexible ultrasonic transducer arraysFormat | Member Price | Non-Member Price |
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Paper Abstract
A damage detection capability based on a flexible ultrasonic transducer (FUT) array bonded onto a planar and a curved
surface is presented. The FUT array was fabricated on a 75 μm titanium substrate using sol-gel spray technique. Room
temperature curable adhesive is used as the bonding agent and ultrasonic couplant between the transducer and the test
article. The bonding agent was successfully tested for aircraft environmental temperatures between -80 °C and 100 °C.
For a planar test article, selected FUT arrays were able to detect fasteners damage within a planar distance of 176 mm,
when used in the pulse-echo mode. Such results illustrate the effectiveness of the developed FUT transducer as compared
to commercial 10MHz ultrasonic transducer (UT). These FUT arrays were further demonstrated on a curved test article.
Pulse-echo measurements confirmed the reflected echoes from the specimen. Such measurement was not possible with
commercial UTs due to the curved nature of the test article and its accessibility, thus demonstrating the suitability and
superiority of the developed flexible ultrasonic transducer capability.
Paper Details
Date Published: 13 April 2011
PDF: 9 pages
Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 79810P (13 April 2011); doi: 10.1117/12.879941
Published in SPIE Proceedings Vol. 7981:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011
Masayoshi Tomizuka, Editor(s)
PDF: 9 pages
Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 79810P (13 April 2011); doi: 10.1117/12.879941
Show Author Affiliations
M. Kobayashi, National Research Council Canada (Canada)
N. Mrad, Defence Research and Development Canada (Canada)
N. Mrad, Defence Research and Development Canada (Canada)
Published in SPIE Proceedings Vol. 7981:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011
Masayoshi Tomizuka, Editor(s)
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