Abstract
This work aims to investigate piezoresistive behavior in plain-woven carbon fiber reinforced polymer (CFRP). Measurement method for electric resistant alteration in the woven CFRP under tensile loading by using a Wheatstone bridge circuit is introduced. Reversibility of the resistant alteration is also investigated whereas the gauge factor of the woven CFRP is evaluated. The result shows that the positive piezoresistive properties of the woven CFRP can be observed by the Wheatstone bridge circuit. The specific resistances of 43.8 μΩm and 10.1 μΩm are obtained for wrap and thickness directions, respectively. Reversibility with a hysteresis of the woven CFRP can also be confirmed with the gauge factor of 22.9 at loading conditions and 17.7 at unloading conditions. Positive piezoresistive behavior which has been revealed in this work can be utilized for structural health monitoring technology development.
Highlights
Woven carbon fiber reinforced polymer (CFRP) has become attractive to be used for critical load-bearing structures in airplanes, trains, ships, and cars
CFRPproduced produced pultrusion process was prepared for tensile
The linear relationship between IDC and VDC for both directions is revealed from 17 different IDC values
Summary
Woven carbon fiber reinforced polymer (CFRP) has become attractive to be used for critical load-bearing structures in airplanes, trains, ships, and cars. The woven pattern can improve structural stability since the loads on wrap and weft directions can be held by fibers simultaneously in one lamina [1]. One of the main challenges to use woven CFRP is the difficulty in detecting structural damages due to intricate patterns and anisotropic properties [3]. The damages need to be detected as early as possible to avoid structural failures during operation. The development of structural health monitoring (SHM) technology for woven CFRP that can detect initial damages needs to be conducted. SHM aims to create a time domain-based structural failure monitoring system that can be used as the basis for establishing a diagnosis or prognosis [4]. SHM has been developed for unidirectional CFRP in the last
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
