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FBG Monitoring Information-Motivated Anti-Fatigue Performance Analysis of CFRP Composites Based on Non-Destructive Tests

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Veröffentlicht in:Polymers vol. 17, no. 13 (2025), p. 1817-1837
1. Verfasser: Fu-Kang, Shen
Weitere Verfasser: Si-Kai, Wang, Jia-Yi, Zhang, Zhi-Gang, Xia, Bao-Rui, Peng, Sasy Chan Yung William, Xiang Ping, Hua-Ping, Wang
Veröffentlicht:
MDPI AG
Schlagworte:
Load
Finite element method
Accuracy
Bragg gratings
Nondestructive testing
Silicones
Carbon fiber reinforced plastics
Data processing
Data analysis
Plates
Life prediction
Fiber composites
Monitoring
Fatigue strength
Statistical analysis
Composite materials
Thermography
Corrosion
Fiber reinforced polymers
Temperature effects
Sensors
Optical fibers
Fatigue tests
Algorithms
Fatigue life
Carbon fiber reinforcement
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Abstract:The wide-spread application of carbon fiber-reinforced polymer (CFRP) composites in industrial fields has led to high demand for developing a rapid detection method for assessing the structural performance of CFRP composites in operation based on optical fiber sensing technology. Therefore, the effectiveness and reliability of evaluating the fatigue resistance of CFRP plates based on fiber Bragg grating (FBG) monitoring information were explored. The strain response of CFRP plates at key positions under constant amplitude fatigue load was monitored by bare FBGs in series and packaged quasi-distributed FBGs in series. The structural performance and fatigue resistance characteristics of CFRP plates were evaluated by statistical analysis and fatigue life prediction theory. The validity and accuracy of the test and analysis results were demonstrated by finite element modeling analysis. Compared with the traditional methods that evaluate the structural fatigue performance based on mass destructive experiments, this method significantly improves the detection efficiency and realizes the non-destructive and rapid online evaluation of structural service performance. Research shows that the designed FBG sensors can effectively monitor the strain response of CFRP plate under fatigue load, and the correlated fatigue algorithm can provide feasible and reliable technical approaches for online detection and evaluation on the structural performance of CFRP components.
ISSN:2073-4360
DOI:10.3390/polym17131817
Quelle:Materials Science Database