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Abstract
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Composite tubes, including epoxy base-material and reinforcing fibers, are widely used in the petroleum, transportation, aeronautics, and aerospace industries due to their high strength and corrosion resistance. Different reinforcing fibers are usually used in making these tubes. In this study, the wear, corrosion, and creep properties of the resin-based tubes made by using a 45-degree unilateral winding method and reinforced by Glass, Carbon, and Kevlar fibers were investigated. The results showed that the highest hardness was obtained for carbon fiber reinforced composite tube (CFR), equal to 65HV, which was 109% more than the kevlar fiber reinforced composite tube (KFR). The wear test results showed that the wear rate of CFR was obtained 6mgr/m, which was 26% and 55% lower than glass fiber reinforced composite tube (GFR) and KFR, respectively. The creep test was done at constant temperature and stress for all samples and the creep strain for the CFR sample was obtained equal to 0.7445. The lowest strain rate was obtained for KFR that its fibers were also severely damaged. The lowest corrosion rate per year was for sample CFR, equal to 113in/year×1000. The corroded samples were subjected to a tensile test, and a 2% improvement in ultimate tensile strength was achieved for GFR. To evaluate the results and the quality of adhesions between fibers and base-material, SEM images were taken from the samples.
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