Mode II fracture behaviour monitoring for composite laminates using embedded fibre Bragg grating sensors

Hang yin Ling; Kin tak Lau; Li Cheng; Zhongqing Su

doi:10.1016/j.compstruct.2006.06.013

Mode II fracture behaviour monitoring for composite laminates using embedded fibre Bragg grating sensors

Hang yin Ling^*, Kin tak Lau, Li Cheng, Zhongqing Su

^*Corresponding author for this work

Research output: Contribution to journal › Journal Article › peer-review

6 Citations (Scopus)

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.

Original language	English
Pages (from-to)	88-93
Number of pages	6
Journal	Composite Structures
Volume	76
Issue number	1-2
DOIs	https://doi.org/10.1016/j.compstruct.2006.06.013
Publication status	Published - 1 Jan 2006
Externally published	Yes

Keywords

Delamination
ENF test
Embedded optical fibre sensor
Fibre Bragg grating (FBG) sensor
Mode II
Stress concentration

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10.1016/j.compstruct.2006.06.013

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title = "Mode II fracture behaviour monitoring for composite laminates using embedded fibre Bragg grating sensors",

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.",

keywords = "Delamination, ENF test, Embedded optical fibre sensor, Fibre Bragg grating (FBG) sensor, Mode II, Stress concentration",

author = "Ling, \{Hang yin\} and Lau, \{Kin tak\} and Li Cheng and Zhongqing Su",

year = "2006",

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doi = "10.1016/j.compstruct.2006.06.013",

language = "English",

volume = "76",

pages = "88--93",

journal = "Composite Structures",

issn = "0263-8223",

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TY - JOUR

T1 - Mode II fracture behaviour monitoring for composite laminates using embedded fibre Bragg grating sensors

AU - Ling, Hang yin

AU - Lau, Kin tak

AU - Cheng, Li

AU - Su, Zhongqing

PY - 2006/1/1

Y1 - 2006/1/1

N2 - 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.

AB - 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.

KW - Delamination

KW - ENF test

KW - Embedded optical fibre sensor

KW - Fibre Bragg grating (FBG) sensor

KW - Mode II

KW - Stress concentration

UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000241777000013

UR - https://openalex.org/W2099503287

UR - https://www.scopus.com/pages/publications/33747344540

U2 - 10.1016/j.compstruct.2006.06.013

DO - 10.1016/j.compstruct.2006.06.013

M3 - Journal Article

SN - 0263-8223

VL - 76

SP - 88

EP - 93

JO - Composite Structures

JF - Composite Structures

IS - 1-2

ER -

Mode II fracture behaviour monitoring for composite laminates using embedded fibre Bragg grating sensors

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Keywords

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