The Effect Carbon Nanotube on Three-point Bending Behavior of Fiber Reinforced Composite

Kaboglu, Cihan


The aim of this research article is to show the effect of Carbon Nanotube (CNT) additive on the performance of composite plate materials with fiber reinforced polymer matrix produced by vacuum infusion method under bending test. In this study, composite plates with carbon fiber, glass fiber and Kevlar fiber reinforced polymer matrix with similar fabric weave structures were produced with the same production parameters. The same composite structures were reproduced as a hybrid composite structure with 0.5% CNT reinforcement by mass. Since CNT is thought to have different effects on different fiber types, in addition to the study, a hybrid composite plate containing glass, carbon and kevlar fiber was produced in two different ways, CNT reinforced and without reinforcement, using the same production parameters. Three point bending test was performed on glass, carbon, kevlar and hybrid structure fiber reinforced composites under 1 mm/min bending with ASTM D7264 standard. As a result, with CNT addition bending performance increased in glass and carbon fiber reinforced composite structures, but elongation performance decreased. In kevlar, both flexural strength and elongation increased. In the hybrid fiber reinforced structure, different fiber types were damaged at different elongation distances within the structure under different loads, and gradually more than one breaks was observed, and when CNT is added, it let flexural strength decreased but elongation increased.


Carbon Nanotube; composite; three-point bending behavior; flexural strength

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