[특허]Radially extending composite structures

Orbital ATK, Inc.

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특허 상세정보

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Radially extending composite structures

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B32B-001/08 B29C-070/32 B29C-070/20 B29C-070/34
출원번호	US-0615980 (2009-11-10)
등록번호	US-9662841 (2017-05-30)
발명자 / 주소	Madsen, Christopher J. McNabb, Eric Healey, John B. Rosevear, Todd
출원인 / 주소	Orbital ATK, Inc.
대리인 / 주소	TraskBritt
인용정보	피인용 횟수 : 0 인용 특허 : 77

초록

A composite structure having at least one radially extending part is provided. The composite structure is formed with ply layers. At least one of the ply layers used to form the radially extending part has fibers oriented at an angle offset from an edge of the at least one ply layer.

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1. A composite structure produced by an at least partially automated layup process, the composite structure comprising: a cylindrical portion extending in an axial direction around a centerline;at least one flange portion exhibiting a substantially elliptical shape, the at least one flange portion extending and positioned radially outward from one side portion of the cylindrical portion in a direction along an axis substantially perpendicular to the centerline of the cylindrical portion, the cylindrical portion having a different geometry than the at least one flange portion; andat least one continuous ply layer comprising a plurality of flags each comprising fibers and a matrix material, the plurality of flags each being positioned adjacent another flag of the plurality of flags to define the at least one continuous ply layer having the fibers oriented at an angle offset from an edge of the at least one continuous ply layer, wherein the fibers of each flag of the plurality of flags of the at least one continuous ply layer are oriented at the same angle, the fibers of the at least one continuous ply layer being substantially evenly placed relative to adjacent fibers along a length of the fibers on the cylindrical portion, the at least one continuous ply layer extending continuously from the cylindrical portion, over an interface between the cylindrical portion and the at least one flange portion, and along the at least one flange portion. 2. The composite structure of claim 1, wherein the fibers of the at least one continuous ply layer are oriented at +17.5 to +27.5 degrees in relation to the edge of the at least one continuous ply layer. 3. The composite structure of claim 1, wherein the fibers of the at least one continuous ply layer are oriented −22.5 degrees in relation to the edge of the at least one continuous ply layer. 4. The composite structure of claim 1, wherein the at least one continuous ply layer is a plurality of ply layers having alternating orientations of fiber oriented at +22.5 degrees and −22.5 degrees in relation to an edge of a respective continuous ply layer of the plurality of ply layers. 5. The composite structure of claim 1, wherein the at least one continuous ply layer comprises a fabric layer, wherein the fibers of fabric layer are oriented at 17.5 to 27.5 degrees in relation to the edge of the at least one continuous ply layer, and wherein the fabric layer comprises additional fibers oriented at 107.5 to 117.5 degrees in relation to the edge of the at least one continuous ply layer. 6. The composite structure of claim 1, wherein the at least one continuous ply layer is a plurality of continuous ply layers with at least some of the plurality of continuous ply layers having differing fiber orientations. 7. The composite structure of claim 1, wherein the fibers of the at least one continuous ply layer are oriented at +/−17.5 to +/−27.5 degrees in relation to the edge of the at least one continuous ply layer. 8. The composite structure of claim 1, wherein the fibers of the at least one continuous ply layer are oriented at 62.5 to 72.5 degrees in relation to the edge of the at least one continuous ply layer. 9. The composite structure of claim 1, wherein the fibers of the at least one continuous ply layer are oriented at −62.5 to −72.5 degrees in relation to the edge of the at least one continuous ply layer. 10. The composite structure of claim 1, wherein the at least one continuous ply layer comprises a fabric having a first set of fibers and a second set of fibers, the first set of fibers and the second set of fibers having different orientations that are offset 90 degrees from each other. 11. The composite structure of claim 10, wherein the first set of fibers have a fiber orientation of 17.5 to 27.5 degrees in relation to the edge of the at least one continuous ply layer and the second set of fibers have a fiber orientation of 107.5 to 117.5 degrees in relation to the edge of the at least one continuous ply layer. 12. The composite structure of claim 11, further comprising at least one other ply layer comprising a fabric having a third set of fibers and a fourth set of fibers, the third set of fibers and the fourth set of fibers having different orientations that are offset 90 degrees from each other. 13. The composite structure of claim 12, wherein the third set of fibers have a fiber orientation of −17.5 to −27.5 degrees in relation to an edge of the at least one other ply layer and the fourth set of fibers have a fiber orientation of 62.5 to 72.5 degrees in relation to the edge of the at least one other ply layer. 14. The composite structure of claim 1, wherein at least one flag of the plurality of flags does not overlap with an adjacent flag of the plurality of flags. 15. The composite structure of claim 1, wherein each flag of the plurality of flags overlaps with at least one adjacent flag of the plurality of flags. 16. The composite structure of claim 1, wherein each flag of the plurality of flags is butt-spliced with at least one adjacent flag of the plurality of flags. 17. The composite structure of claim 1, wherein the cylindrical portion comprises an elliptical cross section. 18. A composite structure comprising: a cylindrical portion extending in an axial direction about a centerline; andat least one radially extending part extending outward from one side portion of the cylindrical portion in a direction along an axis substantially perpendicular to the centerline of the cylindrical portion, the cylindrical portion having a different geometry than the at least one radially extending part, the cylindrical portion and the at least one radially extending part including at least one continuous ply layer having fibers oriented at an angle offset from an edge of the at least one continuous ply layer, the at least one continuous ply layer comprising a plurality of flags each comprising fibers, the plurality of flags each being positioned adjacent another flag of the plurality of flags to define the at least one continuous ply layer, the at least one continuous ply layer extending from the cylindrical portion to the at least one radially extending part, wherein the fibers of the at least one continuous ply layer extend continuously along the at least one radially extending part such that spacing between the fibers in a portion of the at least one continuous ply layer on the at least one radially extending part gradually increases and expands as the at least one continuous ply layer extends toward a radially outer edge of the at least one radially extending part. 19. The composite structure of claim 18, wherein the fibers of the at least one continuous ply layer are oriented at 17.5 to 27.5 degrees in relation to the edge of the at least one continuous ply layer. 20. The composite structure of claim 18, wherein the at least one continuous ply layer extends continuously along the cylindrical portion and the at least one radially extending part without the area within the outer edges of each flag of the plurality of flags of the at least one continuous ply layer having been cut before or during layup of the at least one continuous ply layer to form the composite structure. 21. A composite structure comprising: a first portion extending around a centerline; anda radially extending part extending outward from at least one end of the first portion in a direction along an axis transverse to the centerline of the first portion, the first portion having a different geometry than the radially extending part, the first portion and the radially extending part including at least one continuous ply layer having fibers therein, the at least one continuous ply layer comprising at least two flags each comprising fibers, at least one flag of the at least two flags being positioned adjacent another flag of the at least two flags to define the at least one continuous ply layer, the at least one continuous ply layer extending continuously from the first portion to the radially extending part, wherein the at least one continuous ply layer extends continuously along the radially extending part to an outer edge of the radially extending part, and wherein relative spacing of the fibers in the at least one continuous ply layer in the at least one radially extending part gradually increases as the at least one continuous ply layer extends toward a radially outer edge of the at least one radially extending part. 22. The composite structure of claim 21, wherein the first portion exhibits a cylindrical shape. 23. The composite structure of claim 21, further comprising another radially extending part extending outward from another end of the first portion in the direction along the axis transverse to the centerline of the first portion. 24. A composite structure comprising: a portion of a cylinder extending in an axial direction around a centerline; andat least one flange portion extending radially outward from at least one side portion of the portion of the cylinder in a direction along an axis transverse to the centerline of the portion of the cylinder, the portion of the cylinder having a different geometry than the at least one flange portion, the portion of the cylinder and the at least one flange portion including at least one continuous ply layer having fibers oriented at an angle offset from an edge of the at least one continuous ply layer, the at least one continuous ply layer comprising a plurality of flags each comprising fibers, at least one flag of the plurality of flags being positioned adjacent another flag of the plurality of flags to define the at least one continuous ply layer, wherein the at least one continuous ply layer extends continuously along the portion of the cylinder and the at least one flange portion without the at least one continuous ply layer having been cut during layup of the at least one continuous ply layer to form the composite structure.

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