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IMPROVED STRENGTH PROPERTIES OF COMPOSITE PRODUCTS BY APPLICATION OF THREE DIMENSIONAL REINFORSEMENT OF DRY PREFORMS: A STUDY OF TRENDS

M.A. Orlov1*, A.N. Kalinnikov1, V.A .Seleznev1, R.L. Shatalov2, F.N. Ulitkin1, I.A. Polikarpova1, V.V. Bogachev1, I.D. Zolotarenko1, V.A. Eremenko1

1«Composites of Russia» Technological Center, Bauman Moscow State Technical University, Russian Federation, 105005, Moscow, 2-nd Baumaskaya st., 5

2Moscow Polytechnic University, Russian Federation, 107023, Moscow, B. Semenovskaya str., 38

*Corresponding author: Maksim A. Orlov, E-mail: maksim.orlov@emtc.ru

This article presents a practical study of options to improve performance characteristics and strength properties of composite products of complex geometric shapes intended for gas turbine aircraft engines by methods of three-dimensional preform reinforcement. In the course of the work, various layouts for prototype reinforcement were studied with subsequent tests for resistance against yield mechanical loads; a significant (up to 40 %) dependence of the prototype strength characteristics on the applied reinforcement layout was detected; the advantages of 3D reinforcement presented by various transverse stitching layouts were clearly demonstrated.

Keywords: basalt fibers, composite materials, enhanced performance characteristics, shear strength, three-dimensional reinforcement of performs

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