Structural Health Monitoring of Adhesively Bonded Skin-Stiffener Composite Joint Using Distributed Fibre Optic Sensor

被引：1
作者：
Pant, Shashank [1 ]
Genest, Marc [1 ]
Li, Lucy [1 ]
Li, Gang [1 ]
机构：
[1] Natl Res Council Canada, Aerosp Res Ctr, Ottawa, ON, Canada
来源：
EUROPEAN WORKSHOP ON STRUCTURAL HEALTH MONITORING (EWSHM 2022), VOL 3 | 2023年
关键词：
Structural health monitoring; Bonded composite joint; Disbond; Delamination; Optical fibre sensor;
D O I：
10.1007/978-3-031-07322-9_83
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The structural component evaluated in this research is a simplified representation of composite skin-stiffener joint found in a helicopter tail boom, which was monitored during quasi-static loading conditions using distributed fibre optic sensors, along with resistance wire strain gauges and flash thermography. The skin and the stiffeners were fabricated out of unidirectional carbon fibre prepreg (CYCOM G40-800/5276-1) from Cytec and were bonded with AF163-2K structural film adhesive from 3M. The path chosen for the fibre installation was designed to provide strain response for comparison with the strain gauges, as well as to witness any change in the strain due to disbonding between the stiffener and the skin. The component was quasi-statically loaded until the skin-stiffener joint fully disbonded. The fibre optic sensor was able to detect and track the damage growth during quasi-static testing by monitoring variations in the strain distribution at the skin and stiffener interface. Results from the fibre optic sensor corroborated well with the inspection carried out using flash thermography.
引用
收藏
页码：823 / 830
页数：8
相关论文
共 4 条
  • [1] Adhesively bonded joints in composite materials: an overview
    Banea, M. D.
    da Silva, L. F. M.
    [J]. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART L-JOURNAL OF MATERIALS-DESIGN AND APPLICATIONS, 2009, 223 (L1) : 1 - 18
  • [2] Pulsed thermography for non-destructive evaluation and damage growth monitoring of bonded repairs
    Genest, M.
    Martinez, M.
    Mrad, N.
    Renaud, G.
    Fahr, A.
    [J]. COMPOSITE STRUCTURES, 2009, 88 (01) : 112 - 120
  • [3] Li C., 2019, P 22 INT C COMPOSITE
  • [4] Naftel J., 2018, CASI ASTRO2018 C
1