Monitoring Damage in Aerospace Insulation with Fiber Bragg Grating Sensors
Author Information
Author(s): Yan Guang, Wan Boli, Huang Heng, Li Wuyi
Primary Institution: Beijing Information Science & Technology University
Hypothesis
Can fiber Bragg grating sensors effectively monitor the damage evolution of CFRP laminated plates under complex stress and high-temperature conditions?
Conclusion
FBG sensors can reliably monitor damage in CFRP laminated plates, even under high-temperature conditions, demonstrating their potential for structural health monitoring in aviation.
Supporting Evidence
- FBG sensors accurately monitored the entire process from elastic deformation to damage propagation and eventual failure.
- Despite a 75% reduction in tensile strength at high temperatures, FBG sensors effectively tracked damage evolution.
- The study validated the reliability of FBG sensors in complex stress environments through finite element simulations.
Takeaway
This study shows that special sensors can help keep track of damage in airplane insulation materials, even when they get really hot.
Methodology
The study used finite element simulations and experimental tests on CFRP laminated plates with embedded FBG sensors to monitor damage progression.
Limitations
Calibration is required before use, temperature compensation is needed, and long-term stability of the sensor needs verification.
Digital Object Identifier (DOI)
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