Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/21527
Title: Mode II fracture behaviour monitoring for composite laminates using embedded fibre Bragg grating sensors
Authors: Ling, Hy
Lau, KT 
Cheng, L 
Su, Z 
Keywords: Delamination
Embedded optical fibre sensor
ENF test
Fibre Bragg grating (FBG) sensor
Mode II
Stress concentration
Issue Date: 2006
Publisher: Elsevier
Source: Composite structures, 2006, v. 76, no. 1-2, p. 88-93 How to cite?
Journal: Composite structures 
Abstract: This paper presents the utility of embedded fibre Bragg grating (FBG) sensors for monitoring mode II fracture behaviour of glass fibre-reinforced epoxy (GF/EP) composite beams bearing a mid-plane delamination. Stress concentration at the delamination tip of the beam, induced during an end notched flexure (ENF) test, was monitored by means of the reflection spectrum obtained from the FBG sensor whose centre was located at the tip of delamination. The Bragg wavelength shift, bandwidth and intensity in such a reflection spectrum associated with a load-displacement graph were then used to characterize the fracture behaviour of the delaminated beam.
URI: http://hdl.handle.net/10397/21527
ISSN: 0263-8223
EISSN: 1879-1085
DOI: 10.1016/j.compstruct.2006.06.013
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