Evaluation of delamination crack tip in woven fibre glass reinforced polymer composite using FBG sensor spectra and thermo-elastic response

被引：22
作者：
Kakei, Ayad [1 ,2 ,3 ]
Epaarachchi, J. A. [1 ,3 ]
Islam, Mainul [1 ,3 ]
Leng, J. [1 ,4 ]
机构：
[1] Univ Southern Queensland, Ctr Future Mat, West St, Toowoomba, Qld 4350, Australia
[2] Univ Kirkuk, Coll Engn, Kirkuk, Iraq
[3] Univ Southern Queensland, Sch Mech & Elect Engn, West St, Toowoomba, Qld 4350, Australia
[4] Harbin Inst Technol, Ctr Smart Mat & Struct, Sch Astronaut, Harbin 150001, Heilongjiang, Peoples R China
来源：
MEASUREMENT | 2018年 / 122卷
关键词：
Structural health monitoring; TSA; FBG sensors; Delamination; Composite materials; Cohesive element;
D O I：
10.1016/j.measurement.2018.03.023
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper details a study which was carried out on the application of FBG sensors for investigation of delamination crack status in glass fibre reinforced composite materials. A woven glass (0/90) epoxy composite sample containing a purposely created delamination and an embedded FBG sensor was investigated to study the behaviour of delamination crack under applied axial quasi-static tensile load. The reflected spectra from FBG sensor and the thermo-elastic response using an infrared camera were recorded to detect the propagation of delamination crack tip. In addition a finite element analysis (FEA) was performed using cohesive elements to simulate delamination crack tip. It has been seen that the propagation of delamination crack tip monitored from thermal stress analysis (TSA) was consistent with the prediction of the FBG sensor response. Further it has been observed that the experimentally observed delamination damage propagation was in a good agreement with FEA simulation results.
引用
收藏
页码：178 / 185
页数：8
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