Damage evaluation and analysis of composite pressure vessels using fiber Bragg gratings to determine structural health

2005 ◽  
Author(s):  
Marley Kunzler ◽  
Eric Udd ◽  
Stephen Kreger ◽  
Mont Johnson ◽  
Vaughn Henrie
Keyword(s):  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Pressure Vessels ◽  
Damage Evaluation ◽  
Structural Health ◽  
Composite Pressure Vessels

Distributed sensing of carbon-epoxy composites and composite wound pressure vessels using fiber Bragg gratings

2003 ◽  
Author(s):  
Joseph Grant ◽  
Raj K. Kaul ◽  
Scott L. Taylor ◽  
George Myer ◽  
Kurt V. Jackson ◽  
...  
Keyword(s):  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Pressure Vessels ◽  
Distributed Sensing ◽  
Epoxy Composites

Distributed sensing of carbon-epoxy composites and filament wound pressure vessels using fiber-bragg gratings

2002 ◽  
Author(s):  
Joseph Grant ◽  
Raj K. Kaul ◽  
Scott L. Taylor ◽  
George Myer ◽  
Kurt V. Jackson ◽  
...  
Keyword(s):  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Pressure Vessels ◽  
Distributed Sensing ◽  
Epoxy Composites ◽  
Filament Wound

Feature-guided wave-based health monitoring of bent plates using fiber Bragg gratings

2016 ◽  
Vol 28 (9) ◽  
pp. 1211-1220 ◽  
Author(s):  
Pabitro Ray ◽  
Prabhu Rajagopal ◽  
Balaji Srinivasan ◽  
Krishnan Balasubramaniam
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Guided Waves ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Guided Wave ◽  
Destructive Testing ◽  
Plate Structures ◽  
Structural Health ◽  
Bent Plates

Harnessing of ultrasonic guided waves confined in local features such as bends and welds, known as feature-guided waves, has emerged as a promising technique for non-destructive testing and structural health monitoring of industrial and aerospace structures. This article introduces a fiber Bragg grating based technique which uses feature-guided waves to detect anomalies or defects in plate structures with transverse bends. We are able to obtain good consistency between simulation and experimental results, both in the case of defect-free bent plates and those with transverse defects. Such results establish fiber Bragg gratings as a viable alternative to conventional techniques for structural health monitoring of bent plates.

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