Carbon fiber has excellent functional properties such as corrosion resistance, chemical resistance, and heat resistance, but its most important features are extremely high specific strength and specific stiffness. Nevertheless, carbon fiber is almost never used as a single fiber. Rather, it is normally used in composite materials in which it is embedded in a matrix of resin (matrix resin) or other material. Composite materials in which carbon fiber is used as a reinforcement material are called carbon fiber reinforced plastic (CFRP), and display extremely high specific strength and specific stiffness. For this reason, they are used in the structural materials of aircraft and other transportation equipment in order to improve fuel efficiency by weight reduction. The mechanical properties of these composite materials are generally considered to be influenced by the mechanical properties of the reinforcing fiber and the matrix resin, and by the interfacial strength between the fiber and the resin. For this reason, understanding the strength of a single carbon fiber filament is important for the development of composite materials. In this article, a tensile test of a single carbon fiber filament was conducted in accordance with JIS R 7606:2000, Carbon fibre – Determination of the tensile properties of the single-filament specimens (ISO 11566:1996).

September 4, 2019 GMT

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