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Non-destructive Evaluation of Composite Pressure Vessel by Using FBG Sensors

机译：FBG传感器对复合压力容器的无损评估

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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.
机译：近年来，先进的复合结构已广泛用于许多行业，例如航空航天，飞机，汽车，管道和土木工程。由于其苛刻的工作条件，可靠性和安全性是它们对高级复合结构提出的关键要求。因此，作为一项非常重要的措施，肯定需要在役结构健康监测（SHM）以确保其在现场安全工作。在本文中，将光纤布拉格光栅（FBG）传感器表面安装在箍上并沿FRP压力容器的轴向方向安装，以监视其加压过程中的应变状态。实验结果表明，FBG传感器可用于监测应变的发展并确定复合压力容器的极限破坏应变。

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