FIELD: textiles, paper.
SUBSTANCE: invention relates to a fibre preform to create a conical casing, a composite element reinforced with fibres, comprising such fibrous preform, a composite element, and also a method of formation of a fibre preform. The fibre preform for creation of a conical casing comprises yarns or warp and weft fibres interwoven and forming a continuous flat spiral fabric, which has a shape of the Archimedean spiral and assembled or folded to form the conical casing structure.
EFFECT: obtaining preforms with uniform strength and rigidity, with uniform distribution of fibres in the circumferential and axial directions, of any size, with minimal loss of fabric material, with use of single-piece fabric in order to minimise the number of parts and to reduce manufacturing operations.
34 cl, 6 dwg
