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http://dx.doi.org/10.6111/JKCGCT.2021.31.4.159

Fabrication of carbon nano tube reinforced grass fiber composite and investigation of fracture surface of reinforced composites  

Kim, Hyeongtae (School of Materials Science and Engineering, Gyeongsang National University)
Lee, Do-Hyeon (Department of Materials Engineering and Convergence Technology, Gyeongsang National University)
An, Woo-Jin (School of Mechanical Engineering, Gyeongsang National University)
Oh, Chang-Hwan (Department of Materials Engineering and Convergence Technology, Gyeongsang National University)
Je, Yeonjin (School of Materials Science and Engineering, Gyeongsang National University)
Lee, Dong-Park (School of Materials Science and Engineering, Gyeongsang National University)
Cho, Kyuchul (Hangookprop Corporation)
Park, Jun Hong (School of Materials Science and Engineering, Gyeongsang National University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.31, no.4, 2021 , pp. 159-165 More about this Journal
Abstract
The fiber composites have been investigated as lightweight structure material platforms for aerospace applications because their strength can be enhanced by adding reinforcement without a significant increase in weight. In this study, the fabrication and characterization of carbon nanotube (CNT) reinforced glass fiber composites are demonstrated to enhance the tensile strength of longitudinal direction along the glass fibers. Due to the reinforcement of CNT in epoxy layers, the yield strength of fiber/epoxy composites is enhanced by about 10 %. Furthermore, using scanning electron microscopy, analysis of fracture surfaces shows that mixed CNT in epoxy layers acts as necking agents between fractured surfaces of fiber/epoxy; thereby, initiation and evolution of crack across fiber composite can be suppressed by CNT necking between fractured surfaces.
Keywords
CNT; Glass fiber composite; Tensile strength; Epoxy; Necking;
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