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Nanomaterials 2016, 6(9), 169; doi:10.3390/nano6090169

Monitoring Damage Propagation in Glass Fiber Composites Using Carbon Nanofibers

1
Egyptian Petroleum Research Institute, Nasr City, Cairo 11727, Egypt
2
Department of Physics, Faculty of Science, Cairo University, Giza 12613, Egypt
3
Department of Civil Engineering, University of New Mexico, Albuquerque, NM 87131, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Juan Hinestroza
Received: 14 June 2016 / Revised: 25 August 2016 / Accepted: 1 September 2016 / Published: 10 September 2016
(This article belongs to the Special Issue Textiles Nanotechnology)
View Full-Text   |   Download PDF [8270 KB, uploaded 10 September 2016]   |  

Abstract

In this work, we report the potential use of novel carbon nanofibers (CNFs), dispersed during fabrication of glass fiber composites to monitor damage propagation under static loading. The use of CNFs enables a transformation of the typically non-conductive glass fiber composites into new fiber composites with appreciable electrical conductivity. The percolation limit of CNFs/epoxy nanocomposites was first quantified. The electromechanical responses of glass fiber composites fabricated using CNFs/epoxy nanocomposite were examined under static tension loads. The experimental observations showed a nonlinear change of electrical conductivity of glass fiber composites incorporating CNFs versus the stress level under static load. Microstructural investigations proved the ability of CNFs to alter the polymer matrix and to produce a new polymer nanocomposite with a connected nanofiber network with improved electrical properties and different mechanical properties compared with the neat epoxy. It is concluded that incorporating CNFs during fabrication of glass fiber composites can provide an innovative means of self-sensing that will allow damage propagation to be monitored in glass fiber composites. View Full-Text
Keywords: carbon nanofibers; glass fiber composites; self-sensing; damage monitoring carbon nanofibers; glass fiber composites; self-sensing; damage monitoring
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MDPI and ACS Style

Al-Sabagh, A.; Taha, E.; Kandil, U.; Nasr, G.-A.; Reda Taha, M. Monitoring Damage Propagation in Glass Fiber Composites Using Carbon Nanofibers. Nanomaterials 2016, 6, 169.

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