Dear Colleagues,

Carbon nanotube (CNT) yarns or fibers are piezoresistive continuous structures composed of several thousand carbon nanotubes in their cross sections that can be twisted, densified, and further tailored to serve as sensors. Due to their microscale dimensions, they are amenable to integration in materials, and especially in fiber reinforced polymeric composite materials. The proofs of concept to detect damage and measure distributed strain in laminated polymeric composite materials using integrated CNT yarns are already available. Additional concepts of standalone or integrated piezoresistive strain gauges and other sensing mechanisms to monitor temperature or detect chemicals are also being explored for the CNT yarns. This Special Issue focuses on papers that include experimental, modeling, or theoretical studies about the fabrication and characterization of CNT yarns and their use as sensors to monitor the health of structures or sensing in aerospace, mechanical, civil, or biomedical applications. Of special interest are studies on the piezoresistive response of the CNT yarns and the effect of their structure, geometry, and loading parameters on that response. The main sensing mechanisms of the CNT yarns are based on their piezoresistive response, but piezoimpedance or other mechanisms that may be tapped for sensing are also of interest. The papers of this Special Issue may contribute to realize integrated, distributed, and real-time sensing using CNT yarns and lead to robust and simple health monitoring techniques and he tmaintenance of structures, components, or devices.

Prof. Dr. Jandro Abot
Guest Editor

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