Composites
AssigneesBAE SYSTEMS plc, Devold AMT AS
InventorMichael J Healey
Life of this patent
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Abstract
This invention relates to a composite laminate, a layup and preform for such a composite laminate and to a method of manufacturing the composite laminate. The layup (28), preform and composite laminate (22) include at least one ply (20) which includes hairy yarn (10). The action of the hairy yarn (10) is to provide cross ply linking owing to the extension of fibers from the hairy yarn into spaces both within the ply and between the plies. The addition of resin matrix material (26) to layup provides a firm cross ply linkage to the composite laminate.
Claims20
A composite laminate comprising a layup of fibre plies bonded in a matrix material, wherein at least one fibre ply is of non-woven fibres and said at least one fibre ply including at least one hairy yarn.
A method of producing a composite laminate comprising the steps of:
- forming a layup of fibre plies, at least one of said fibre plies is non-woven and includes a hairy yarn,
- applying to the layup a bonding matrix, and
- hardening the matrix to form the composite laminate.
A composite laminate comprising a layup of fibre plies bonded in a matrix material, wherein at least one fibre ply is of non-woven fibres and said at least one fibre ply including at least one hairy yarn, wherein the hairy yarn is arranged such that short lengths of fibre protruding out from the main orientation of the fibres of the hairy yarn in one ply interact with those in another ply.
Dependencies are inferred from the claim text.