New commercial and military aircraft components are often manufactured using advanced composite materials. Fuel is stored in the wing and horizontal tail structures of aircraft for prolonged periods of time. The use of alternative turbine engine fuels as substitutes for such kerosene-based fuels as Jet-A is increasing steadily. However, the studies related to effects of the fuels on the composite structure of aircraft are limited in number. This research was meant to investigate the effects that contacting alternative turbine fuels might have on the mechanical properties of a composite structure. Three different test settings were prepared — 0 and 90° orientation tensile and a modified wedge ones. An IM7 8552 unidirectional carbon fiber/epoxy prepreg was used to manufacture test specimens. They were soaked in various kinds of turbine engine fuels: neat Jet-A, 50/50 blend of Jet-A and hydroprocessed renewable jet (HRJ) (Jet-A/HRJ), Fischer-Tropsch (FT), 50/50 blend of synthetic jet fuel S8 and Fischer-Tropsch (FT) (S8/FT), hydrogenated esters and fatty acids (HEFA) fuels, and synthesized iso-paraffin fuels (SIP) for a period of 45 days and then tested. The test data obtained were analyzed to detect any significant degradation of the mechanical properties of test specimens.
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Russian translation published in Mekhanika Kompozitnykh Materialov, Vol. 57, No. 5, pp. 853-868, September-October, 2021. Russian DOI: 10.22364/mkm.57.5.04.
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Futch, T., Kim, G. & Sterkenburg, R. Investigating the Effects that Alternative Turbine Engine Fuels have on the Mechanical Properties of Carbon Fiber/Epoxy Composite. Mech Compos Mater 57, 597–608 (2021). https://doi.org/10.1007/s11029-021-09982-x
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DOI: https://doi.org/10.1007/s11029-021-09982-x