Monitoring and optimizing the pressured point of composite vacuum bag molding process with fiber Bragg grating sensors

被引：0
作者：
Lu, Shaowei [1 ,2 ]
Ma, Keming [1 ,2 ]
Xiong, Xuhai [1 ,2 ]
Wang, Xiaoqiang [1 ,2 ]
Jia, Caixia [1 ,2 ]
机构：
[1] Liaoning Key Laboratory of General Aviation, Shenyang Aerospace University, Shenyang, 110136, Liaoning
[2] Department of Aerospace, Shenyang Aerospace University, Shenyang, 110136, Liaoning
来源：
Zhongguo Jiguang/Chinese Journal of Lasers | 2014年 / 41卷 / 08期
关键词：
Composite; Fiber Bragg grating; Gel point; Pressured point; Sensors; Vacuum bag molding process;
D O I：
10.3788/CJL201441.0806001
中图分类号：
学科分类号：
摘要：
Fiber Bragg grating (FBG) sensor is sensitive to strain and temperature during composite curing process. A new method is raised to monitor the temperature and strain with double FBG sensors during composite vacuum bag molding process. The gel point and pressured point are obtained and optimized. The experimental results show that the gel temperature and time obtained by FBG sensors and dynamic mechanical thermal analysis (DMTA) are very consistency, and the composite manufactured under optimum pressured point has excellent interface performance and no delamination in the middle layer from scanning electron microscopy (SEM). This method can realize monitoring and optimizing of composite vacuum bag molding process.
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