TY - GEN
T1 - Monitoring of interfacial crack growth of stiffened panel with embedded fiber Bragg grating sensors
AU - Okabe, T.
AU - Sekine, H.
PY - 2006/12/1
Y1 - 2006/12/1
N2 - We propose a new coupled method to identify the shape of the interfacial crack between the blade stringer and the skin panel of wing box structural components using embedded fiber Bragg grating (FBG) sensors and to predict the life of the structural components. Our proposed method assumes that FBG sensors are embedded into the interface between the blade stringer and the skin panel of wing box structures. We analyze the data detected by the embedded FBG sensors to identify the shape of the interfacial crack. The numerical simulation of the fatigue growth of the interfacial crack is also presented in this paper. This simulation can express the arbitrary shape of the interfacial crack using the automatic mesh generator. We then apply our proposed identification method to the simulated fatigue crack. The results indicate that the coupled method is useful for the health monitoring of the aircraft structures.
AB - We propose a new coupled method to identify the shape of the interfacial crack between the blade stringer and the skin panel of wing box structural components using embedded fiber Bragg grating (FBG) sensors and to predict the life of the structural components. Our proposed method assumes that FBG sensors are embedded into the interface between the blade stringer and the skin panel of wing box structures. We analyze the data detected by the embedded FBG sensors to identify the shape of the interfacial crack. The numerical simulation of the fatigue growth of the interfacial crack is also presented in this paper. This simulation can express the arbitrary shape of the interfacial crack using the automatic mesh generator. We then apply our proposed identification method to the simulated fatigue crack. The results indicate that the coupled method is useful for the health monitoring of the aircraft structures.
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M3 - Conference contribution
AN - SCOPUS:84867875856
SN - 1932078630
SN - 9781932078633
T3 - Proceedings of the 3rd European Workshop - Structural Health Monitoring 2006
SP - 236
EP - 243
BT - Proceedings of the 3rd European Workshop - Structural Health Monitoring 2006
T2 - 3rd European Workshop on Structural Health Monitoring 2006
Y2 - 5 July 2006 through 7 July 2006
ER -