Application of Air-Coupled Ultrasound in NDE of Composite Space Structures

Details Application of Air-Coupled Ultrasound in NDE of Composite Space Structures Application of Air-Coupled Ultrasound in NDE of Composite Space Structures

Feb 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aipc..700..851h&link_type=abstract

QUANTITATIVE NONDESTRUCTIVE EVALUATION. AIP Conference Proceedings, Volume 700, pp. 851-858 (2004).

Computer Science

Sound

Nondestructive Testing: Ultrasonic Testing, Photoacoustic Testing, Solids: E.G., Composites, Glasses, Semicrystalline Polymers, Space-Based Ultraviolet, Optical, And Infrared Telescopes

Scientific paper

This paper describes the use of air-coupled ultrasound for inspecting flight-like composite components for NASA's next Hubble Space Telescope servicing mission. Air-coupled ultrasonic scan has the advantage of being non-contact and hence non-contaminating. Engineered flaws in solid laminates and honeycomb sandwiches are detected and imaged. Relatively thick inserts made of both composite and metal in the honeycomb panels are inspected using air-coupled through-transmission ultrasonic scans; unbond conditions are detected. In preparation for scanning large components with air-coupled ultrasound, the instrument is taken out of the laboratory and integrated with a gantry system.

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