Health monitoring of composite pressure vessels through omnidirectional buckypaper sensor array

Composite pressure vessels (COPV) are widely used in the aerospace field, where they experience a wide range of unpredictable operating conditions. However, the recent work remains at monitoring the structural health of the whole COPV without considering lamination. This article introduces a kind of...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2022-03, Vol.128 (3), Article 178
Main Authors: Zhang, Lu, Qu, Xiaoqiang, Zhao, Ziping, Zhang, Hao, Lu, Shaowei, Wang, Xiaoqiang
Format: Article
Language:English
Subjects:
Applied physics
Characterization and Evaluation of Materials
Condensed Matter Physics
Fatigue tests
Hydraulic pressure
Machines
Manufacturing
Materials science
Nanotechnology
Optical and Electronic Materials
Physics
Physics and Astronomy
Pressure vessels
Processes
Sensor arrays
Sensors
Structural health monitoring
Surfaces and Interfaces
Thin Films
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Summary:Composite pressure vessels (COPV) are widely used in the aerospace field, where they experience a wide range of unpredictable operating conditions. However, the recent work remains at monitoring the structural health of the whole COPV without considering lamination. This article introduces a kind of buckypaper (BP) sensor that can be put into COPV for structural health monitoring without requiring their removal from service. Simultaneously, the introduction of a flexible printed circuit enables the omnidirectional BP sensor to monitor strain state changes in two directions at one time. It can also form a matrix monitoring area with fewer sensors and increase the survival rate. Before being applied to COPV, tensile experiments and fatigue cycle experiments were carried out. At hydraulic pressure tests, the BP sensor is embedded in the COPV to perform real-time strain monitoring in both the bile layer and fiber layer. The experimental result shows that the BP sensor can maintain a good response and response consistency for a long time. Therefore, the BP sensor can be used for health monitoring of COPV.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-022-05316-3