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Manufacturing of advanced composites for aircraft structures requires precise layups of carbon fiber tape. Currently visual inspection is the method used to determine if tape angle deviations are acceptable. Automated inspection during fabrication would decrease inspection times and therefore reduce costs. NASA's Advanced Composites Project is investigating technologies that increase automated remote...
NASA's Advanced Composites Project is investigating technologies that increase automated remote inspection of aircraft composite structures. Therefore, microwave Frequency Domain Reflectometry (FDR) is being investigated as a method of enabling rapid remote inspection of angular orientation of the tow using microwave radiation. This work will present preliminary data demonstrating that frequency shifts...
NASA's Advanced Composites Project is investigating technologies that increase automated remote inspection of aircraft composite structures. Therefore, microwave Frequency Domain Reflectometry (FDR) is being investigated as a method of enabling rapid remote measurement of strain occurring at the first ply of a composite fiber reinforced polymer (CFRP) structure using Radio Frequency (RF) Electro-Magnetic...
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