On the feasibility of optical fibre sensors for strain monitoring in thermoplastic composites under fatigue loading conditions

被引：40
作者：
De Baere, I. [1 ]
Luyckx, G. [1 ]
Voet, E. [1 ]
Van Paepegem, W. [1 ]
Degrieck, J. [1 ]
机构：
[1] Univ Ghent, Fac Engn, Dept Mech Construct & Prod, B-9000 Ghent, Belgium
来源：
OPTICS AND LASERS IN ENGINEERING | 2009年 / 47卷 / 3-4期
关键词：
Fibre Bragg grating; Thermoplastic composites; Fatigue; BRAGG GRATING SENSORS; POLYMERIC COMPOSITES; FBG SENSOR;
D O I：
10.1016/j.optlaseng.2008.01.001
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This study investigates the possibility of using optical fibres with Bragg gratings for measurements in thermoplastic composites under fatigue loading conditions. Two setups are considered: (i) the fibre is embedded in the composite and (ii) the grating is bonded externally. Detailed information is given on the principle of optical fibre measurements and the data acquisition for both setups. To verify the strain derived from the optical fibre, the strain is compared with extensometer measurements. A special design of the blades of the extensometer is presented, since the standard blades suffer from a loss of grip on the surface of the specimen. The material used for this study was a carbon fibre-reinforced polyphenylene sulphide. It can be concluded for both setups that the optical fibre survives over half a million loading cycles, without de-bonding of the fibre. The advantage of the external fibre over the embedded one is that it can be mounted after manufacturing of the plate, but it has a higher risk of being damaged during working conditions of the component. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：403 / 411
页数：9
相关论文
共 13 条
[1]  
CHOJETZKI C, 2005, LARGE FIBRE BRAGG GR
[2]   Characterization of residual strains in an epoxy block using an embedded FBG sensor and the OLCR technique [J].
Colpo, F ;
Humbert, L ;
Glaccari, P ;
Botsis, J .
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2006, 37 (04) :652-661
[3]   Characterisation of residual stresses in a single fibre composite with FBG sensor [J].
Colpo, Fabiano ;
Humbert, Laurent ;
Botsis, John .
COMPOSITES SCIENCE AND TECHNOLOGY, 2007, 67 (09) :1830-1841
[4]   Strain monitoring in thermoplastic composites with optical fiber sensors: Embedding process, visualization with micro-tomography, and fatigue results [J].
De Baere, I. ;
Voet, E. ;
Van Paepegem, W. ;
Vlekken, J. ;
Cnudde, V. ;
Masschaele, B. ;
Degrieck, J. .
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS, 2007, 20 (05) :453-472
[5]   Comparison of different identification techniques for measurement of quasi-zero Poisson's ratio of fabric-reinforced laminates [J].
De Baere, I. ;
Van Paepegem, W. ;
Degrieck, J. ;
Sol, H. ;
Van Hemelrijck, D. ;
Petreli, A. .
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2007, 38 (09) :2047-2054
[6]   Feasibility of integrated optical fibre sensors for condition monitoring of composite structures Part I: Comparison of Bragg-sensors and strain gauges [J].
De Waele, Wim ;
Degrieck, Joris ;
Moerman, Wim ;
Taerwe, Luc ;
De Baets, Patrick .
Insight: Non-Destructive Testing and Condition Monitoring, 2003, 45 (04) :266-271
[7]   Monitoring of fibre reinforced composites with embedded optical fibre Bragg sensors, with application to filament wound pressure vessels [J].
Degrieck, J ;
De Waele, W ;
Verleysen, P .
NDT & E INTERNATIONAL, 2001, 34 (04) :289-296
[8]   In-situ process and condition monitoring of advanced fibre-reinforced composite materials using optical fibre sensors [J].
Doyle, C ;
Martin, A ;
Liu, T ;
Wu, M ;
Hayes, S ;
Crosby, PA ;
Powell, GR ;
Brooks, D ;
Fernando, GF .
SMART MATERIALS & STRUCTURES, 1998, 7 (02) :145-158
[9]  
Grattan K TV., 2000, Optical Fibre Sensor Technology: Advanced Applications-Bragg Gratings and Distributed Sensors". In
[10]   Simultaneous measurement of temperature and strain in glass fiber/epoxy composites by embedded fiber optic sensors: I. Cure monitoring [J].
Montanini, R. ;
D'Acquisto, L. .
SMART MATERIALS & STRUCTURES, 2007, 16 (05) :1718-1726
12