DAMAGE MONITORING IN COMPOSITE STRUCTURES BY EMBEDDED FIBER BRAGG GRATING SENSORS

摘要：

We present a novel methodology for modeling and detecting the anomaly evolution in composite structures by fiber Bragg grating sensor (FBG).The strain/ transverse force and temperature change effects on the embedded FBG sensor area are separately modeled by introducing the change of the refractive indices and grating period along the fiber to the transfer matrix formulation method (measured spectrum).Furthermore,the use of genetic algorithm for reconstruction of non-uniform applied anomaly from the measured spectrum is presented.The presented method is verified through the numerical simulations and the results show that our methodology can effectively represent and model the profile of the applied perturbation profile.

关键词： fiber Bragg grating sensor genetic algorithm structural health monitoring

作者: M.Etezad M.Kahrizi K.Khorasani

作者单位: Department of Electrical and Computer ngineering,Concordia University,Montreal,Quebec H3G1M8 Canada

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 953-956

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）