Strain Monitoring and Damage Detection of a Filament Wound Composite Pressure Tank Using Embedded Fiber Bragg Grating Sensors

Sang Wuk Park; Dong Hoon Kang; H.J. Bang; Sang Oh Park; Chun Gon Kim

doi:10.4028/www.scientific.net/KEM.321-323.182

Paper Titles

Performance of Electro-Active Papers Made with Cellulose and Multi-Walled Carbon Nanotubes
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Experimental and Analytical Studies for Impedance-Based Smart Health Monitoring of Concrete Structures
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A Study on Damage Behavior and Strength of Smart Material under Low Temperature Using Acoustic Emission
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Surface Monitoring Technique for Fatigue Effect of Shape Memory Alloys(SMAs)
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Strain Monitoring and Damage Detection of a Filament Wound Composite Pressure Tank Using Embedded Fiber Bragg Grating Sensors
p.182

Numerical Modeling of Shape Memory Alloy Thin Film Actuators and Their Applications
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Wireless Instrumentation for Monitoring of Smart Structures
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Cohesive Zone Parameters for the Interface between NiTi Shape Memory Alloy and CFRP
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Velocity Feedback with a Non-Collocated Pair of Sensor and Actuator for Tip Vibration Suppression of a Beam
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 321-323Strain Monitoring and Damage Detection of a...

Strain Monitoring and Damage Detection of a Filament Wound Composite Pressure Tank Using Embedded Fiber Bragg Grating Sensors

Abstract:

Composite pressure tanks are rapidly expanding in their range of use. However, for high pressure flammable or toxic gases, there is less confidence about their reliability. In this study, fiber Bragg grating (FBG) sensors embedded into a composite pressure tank monitored strain and detected damage. The sensor heads and fiber optic lines were protected with an acrylate recoating, adhesive films, PVC tubes and Teflon film to survive under the harsh environment of the filament winding process. During the quasi-static loading test, the internal strain was measured with embedded FBG sensor arrays. In order to detect damage occurred during the test, impacts were applied on three different positions in each side by an impact hammer. The difference between damaged and undamaged sides in impact response was analyzed. An interrogation system using a wavelength-swept fiber laser (WSFL) was used for measuring strain, and an erbium-doped fiber amplifier (EDFA) laser source with a tunable Fabry-Perot filter was used for measuring impact response.