Effect of disbond propagation on the reflected spectra of CFBG sensors embedded within the bondline of composite bonded joints

摘要：

Chirped fiber Bragg grating (CFBG) sensors were embedded within the adhesive bondline of single-lap CFRP-GFRP bonded composite joints. The effect of disbond propagation (as a consequence of fatigue loading) on the reflected spectra from the CFBG sensor has been studied. As the disbond propagates, thermal strains generated during the bonding of the joint at elevated temperature are released and, as a consequence, a peak in the reflected spectra of the CFBG sensor can be seen. Using a transparent GFRP adherend, it has been possible to demonstrate that there is reasonable agreement between the position of the peak in the reflected spectrum and the disbond front position in the bonded joint.

关键词： chirped fibre Bragg grating adhesively bonded composite joint disbond propagation

作者: Yalin Guo S. L. Ogin T. F. Capell A.M. Thorne G.T. Reed Yingsong Wang S.C. Tjin

作者单位: Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, GU2 7XH, United Kingd Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, GU2 7XH, United Kingd School of Electrical and Electronic Engineering, Photonics Research Centre, Nanyang Technological Un

会议类型: 国际会议

会议名称: 第二届多功能材料与结构国际会议

会议地点: 青岛

会议语种:英文

页码: 2067-2070

在线出版日期: 2009-10-09（万方平台首次上网日期，不代表论文的发表时间）