| Non-destructive Evaluation of Composite Pressure Vessel by Using FBG Sensors |
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| 作者姓名： | HAO Jun-cai LENG Jin-song WEI Zhang |
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| 作者单位： | HAO Jun-caia，LENG Jin-songa，WEI Zhangb aCenter for Composite Materials and Structures，Harbin Institute of Technology，Harbin 150080，China bHarbin Aviation Industry Co. LTD，Harbin 150080，China |
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| 摘 要： | In recent years, advanced composite structures are used extensively in many industries such as aerospace, aircraft, automobile, pipeline and civil engineering. Reliability and safety are crucial requirements posed by them to the advanced composite structures be- cause of their harsh working conditions. Therefore, as a very important measure, structural health monitoring (SHM) in-service is defi- nitely demanded for ensuring their safe working in-situ. In this paper, fiber Bragg grating (FBG) sensors are surface-mounted on the hoop and in the axial directions of a FRP pressure vessel to monitor the strain status during its pressurization. The experimental results show that the FBG sensors could be used to monitor the strain development and determine the ultimate failure strain of the composite pressure vessel.
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| 关 键 词： | 光纤传感器 布拉格光纤 复合材料 导管 |
| 收稿时间： | 7 August 2006 |
| 修稿时间： | 2006-08-072006-11-03 |
Non-destructive Evaluation of Composite Pressure Vessel by Using FBG Sensors |
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| HAO Jun-cai LENG Jin-song WEI Zhang.Non-destructive Evaluation of Composite Pressure Vessel by Using FBG Sensors[J].Chinese Journal of Aeronautics,2007,20(2):120-123. |
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| Authors: | HAO Jun-cai LENG Jin-song WEI Zhang |
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| Institution: | 1. Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150080, China;2. Harbin Aviation Industry Co. LTD, Harbin 150080, China |
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| Abstract: | In recent years, advanced composite structures are used extensively in many industries such as aerospace, aircraft, automobile,pipeline and civil engineering. Reliability and safety are crucial requirements posed by them to the advanced composite structures because of their harsh working conditions. Therefore, as a very important measure, structural health monitoring (SHM) in-service is definitely demanded for ensuring their safe working in-situ. In this paper, fiber Bragg grating (FBG) sensors are surface-mounted on the hoop and in the axial directions of a FRP pressure vessel to monitor the strain status during its pressurization. The experimental results show that the FBG sensors could be used to monitor the strain development and determine the ultimate failure strain of the composite pressure vessel. |
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| Keywords: | fiber optic sensor fiber Bragg grating composite pressure vessel non-destructive evaluation Sensors Pressure Vessel Composite experimental results show development determine ultimate failure sensors axial pressure vessel health monitoring strain status during fiber Bragg grating paper |
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