NON-DESTRUCTIVE EVALUATION OF THE COMPOSITE LAMINATE BY USING FIBRE OPTIC AE SENSORS
In recent years, advanced composite structures are used extensively in many industrial areas such as aerospace,aircraft, automobile, pipeline and civil engineering. But composite structure is often effected by the complicated loads, this would threat its reliability and safety in service. Thus Non-destructive evaluation (NDE) is very important and definitely demanded for safely working of high performance composite structures in-situ. In this paper, a novel fibre optic AE sensor based on single mode fibre optic fused-tapered coupler have been developed and investigated. They have also been used to inspect the damage of the composite laminate. The experimental results obtained indicate that the fibre optic AE sensors have good frequency response than commercial piezoelectric sensor. Furthermore, structural health status of composite can be monitored by using this sensor.
Fibre optic sensor (FOS) Acoustic Emission (AE) Composite laminate Non-destructive evaluation
Juncai Hao Jinsong Leng
Centre for Composite Materials and Structrues, P.O.Box 3011,No.2 YiKuang Street, Science Park of Harbin Institute of Technology(HIT),Harbin 150080,PR.China
国际会议
南京
英文
310-315
2006-09-24（万方平台首次上网日期，不代表论文的发表时间）