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http://dx.doi.org/10.9725/kts.2020.36.3.133

Effect of Fiber Orientation on the Friction and Wear Properties of Epoxy-based Composites  

An, Hyo-Seong (Graduate School, Dept. of Mechanical Engineering, Yonsei University)
Khadem, Mahdi (Graduate School, Dept. of Mechanical Engineering, Yonsei University)
Chun, Heoung-Jae (Dept. of Mechanical Engineering, Yonsei University)
Kim, Dae-Eun (Dept. of Mechanical Engineering, Yonsei University)
Publication Information
Tribology and Lubricants / v.36, no.3, 2020 , pp. 133-138 More about this Journal
Abstract
In this paper, we present an experimental investigation of the friction coefficient and wear area change of carbon/epoxy and E-glass/epoxy composites depending on the fiber direction (0°/90°). We compared the results of the case where the sliding direction is parallel to the fiber direction (0°) with that of the case where it is perpendicular to the fiber direction (90°). The ball-on-plate wear test equipment was used to cause wear in both directions. Two types of specimens were prepared with thicknesses of 3 mm-one made of carbon fiber reinforced plastic composite (CFRP) and the other of glass fiber reinforced plastic composite (GFRP). A normal force of 20 N was applied to the specimen and the sliding speed was 10 mm/s and the sliding distance was set to 20 m to perform the wear test. The CFRP demonstrates superior tribological characteristics compared to the GFRP. This outcome is attributed to graphitization of carbon, which serves as solid lubricating particles. In addition, both CFRP and GFRP are worn more in the 90° direction than in the 0° direction. This is due to the greater occurrence of fiber breakage and separation in the 90° direction than in the 0° direction. This study is expected to be utilized as basic data for understanding the friction and wear characteristics of CFRP and GFRP composites along the fiber direction and to apply the appropriate material.
Keywords
carbon/Epoxy composite; e-glass/epoxy composite; fiber orientation; friction coefficient; wear;
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