1. Electro-thermal–mechanical performance of a sensor based on PAN carbon fibers and real-time detection of change under thermal and mechanical stimuli
- Author
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Yumna Qureshi, Mostapha Tarfaoui, Khalid Lafdi, Institut de Recherche Dupuy de Lôme (IRDL), Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Centre National de la Recherche Scientifique (CNRS), University of Dayton, and University of Northumbria at Newcastle [United Kingdom]
- Subjects
Materials science ,F200 ,H300 ,02 engineering and technology ,Electromechanical performance ,010402 general chemistry ,01 natural sciences ,PAN carbon fiber sensor ,chemistry.chemical_compound ,Electro-thermal behavior ,Thermal ,General Materials Science ,Sensitivity (control systems) ,[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,Composite material ,Reproducibility ,Mechanical Engineering ,Polyacrylonitrile ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,Piezoresistive effect ,0104 chemical sciences ,[SPI.MECA.GEME]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanical engineering [physics.class-ph] ,Real-time monitoring system ,chemistry ,Mechanics of Materials ,Gauge factor ,Structural health monitoring ,Deformation (engineering) ,0210 nano-technology - Abstract
International audience; Structural health monitoring (SHM) is a vastly growing field consisting of sensors embedded in or attached with the structure which respond to the strain or other stimuli to monitor the deformation in real-time. In this study, a carbon fiber (CF) sensor was developed using unidirectional Polyacrylonitrile (PAN) carbon filaments aligned straightly together and its sensitivity was calculated experimentally, with the gauge factor (GF) in 10.2-10.8 range. The electro-thermal behavior of this CF sensor showed distinct performance and detected the change in the surrounding temperature. There is a good reproducibility in the results in both piezoresistive and electrothermal behavior of the CF sensor and its electrical performance showed real-time detection of both mechanical and thermal stimuli. The results established that the CF exhibited good potential as a flexible strain sensor for in-situ monitoring of damage or energy release during the failure of composites.
- Published
- 2021