FIELD: technological processes.
SUBSTANCE: invention relates to piling of fibrous materials and method of its arrangement. The piling comprises at least two layers of unidirectional carbon fibres going in different directions, in which each unidirectional layer is connected on at least one its surface with an adjacent layer of non-woven material from thermoplastic fibres, besides, between two serial layers of unidirectional carbon fibres there is at least one layer of non-woven material from thermoplastic fibres. Connection between each unidirectional layer and each layer of non-woven material adjacent to it is provided due to the specified layer of the non-woven material, by means of welding spots resulting in intermittent welding. Specified welding points also provide for cohesion of piling, at the same time at least one welding spot includes perforations, which form channels for diffusion of resin and going into thickness of piling from fibrous materials across the piling layers.
EFFECT: invention provides for increased mechanical properties and drapability, absence of microcracks.
23 cl, 9 dwg, 5 tbl
