Browse Publications Technical Papers 2013-01-2256

Impact and Manufacturing Defect Visualization of Space Launcher Aluminum Liner/Filament Wound Composite Fuel Tank using Ultrasonic Propagation Imaging System 2013-01-2256

We applied ultrasonic propagation imaging (UPI) system for rapid and reliable quality control of fuel tanks for a space launcher. The fuel tank is an aluminum-lined CFRP propellant tank. The UPI system uses Q-switched laser (QL) to generate ultrasonic wave on the test specimen, and laser mirror scanner (LMS) to control the laser impinging point that scans the area of interest with high speed. Each ultrasonic wave generated by laser impinging was received by a piezoelectric sensor with coordinate information of the scanned area. After ultrasonic propagation image processing, results with impact damage and manufacturing defect information of the fuel tank were presented.


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