LAMINATED COMPOSITE RADIUS FILLER WITH GEOMETRIC SHAPED FILLER ELEMENT AND METHOD OF FORMING SAME Russian patent published in 2018 - IPC B64C1/06 B64C1/12 B32B3/26 

Abstract RU 2664524 C9

FIELD: aeronautics; aviation; cosmonautics.

SUBSTANCE: invention relates to composite structures and relates to a laminated composite radius filler with a geometric shaped filler element and method for manufacture thereof. Filler comprises a stacked ply assembly comprising a plurality of stacks of laminate radius filler plies cut to a desired width and having a desired ply orientation. Laminated composite radial filler further comprises a geometric shaped filler element positioned at a desired location on a first portion of the stacked ply assembly. Geometric shaped filler element deforms a second portion of the stacked ply assembly stacked over the geometric shaped filler element, such that the laminate radius filler plies of the second portion of the stacked ply assembly change direction and have a component of direction comprising a horizontal direction and a vertical direction. Laminated composite radius filler has a shape substantially corresponding to a radius filler region of the composite structure.

EFFECT: invention provides a solution to the problem of delamination of laminated composite radius fillers used in composite structures, such as reinforcing stiffeners and stringers.

20 cl, 8 dwg

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RU 2 664 524 C9

Authors

Kadzhita Kirk B.

Frish Duglas A.

Dates

2018-08-20Published

2014-07-01Filed