The long-term goal of this project is the development of embedded, optimally distributed, multi-scale sensing methodologies that can be integrated into material systems for failure identification in structural systems. The coupling of sensor data fusion with a three-dimensional predictive framework will provide insight and understanding of events that are difficult, if not impossible, in any experimental study, such as subsurface damage and crack nucleation in structural systems. The current work presents an experimental study of the survivability and degradation behavior of an optical fiber Bragg grating sensor, surface mounted on a woven fiber composite material system during multiple low velocity impacts. The results reveal that as sensor degradation occurs, additional coupling phenomena other than Bragg reflection are observed in the grating sensor. From these additional modes, information on the sensor/host bond and fiber degradation is obtained.
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ASME 2004 International Mechanical Engineering Congress and Exposition
November 13–19, 2004
Anaheim, California, USA
Conference Sponsors:
- Materials Division
ISBN:
0-7918-4712-8
PROCEEDINGS PAPER
Failure Identification Methodology for Woven Composites Incorporating Sensor Degradation
James Pearson,
James Pearson
North Carolina State University
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Mohanraj Prabhugoud,
Mohanraj Prabhugoud
North Carolina State University
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Mohammed Zikry,
Mohammed Zikry
North Carolina State University
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Kara Peters
Kara Peters
North Carolina State University
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James Pearson
North Carolina State University
Mohanraj Prabhugoud
North Carolina State University
Mohammed Zikry
North Carolina State University
Kara Peters
North Carolina State University
Paper No:
IMECE2004-61802, pp. 31-40; 10 pages
Published Online:
March 24, 2008
Citation
Pearson, J, Prabhugoud, M, Zikry, M, & Peters, K. "Failure Identification Methodology for Woven Composites Incorporating Sensor Degradation." Proceedings of the ASME 2004 International Mechanical Engineering Congress and Exposition. Materials. Anaheim, California, USA. November 13–19, 2004. pp. 31-40. ASME. https://doi.org/10.1115/IMECE2004-61802
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