Monitoring mode II fracture behaviour of composite laminates using embedded fiber-optic sensors
作者： Hang-Yin Ling , Kin-Tak Lau , Zhongqing Su , Eric Tsun-Tat Wong , None
DOI: 10.1016/J.COMPOSITESB.2006.07.004
关键词:
摘要: Abstract Utilization of embedded Fiber Bragg Grating (FBG) sensors for monitoring mode II fracture behaviour composite laminate beams containing different delaminations along the thickness-wise direction, by virtue End-Notch Flexure (ENF) tests, is presented. Non-uniform strain distribution due to stress concentration at delamination tip was examined way observing reflection spectrum from FBG sensor. The in ENF specimens, which are subjected various applied loads, analyzed terms shift, shape, bandwidth and intensity spectrum. Relationships between load–displacement graphs corresponding spectra under tests were established. In addition, feasibility reliability using laminates discussed.
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