Quasi-isotropic three-dimensional preform and method of making thereof
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
D03D-013/00
D03D-011/02
B29B-011/16
D03D-041/00
B29C-070/22
D03D-049/20
D03D-025/00
D03D-049/10
B29K-105/08
B29L-031/60
B29B-011/04
출원번호
US-0346580
(2008-12-30)
등록번호
US-8859083
(2014-10-14)
발명자
/ 주소
Goering, Jonathan
출원인 / 주소
Albany Engineered Composites, Inc.
대리인 / 주소
Frommer Lawrence & Haug LLP
인용정보
피인용 횟수 :
0인용 특허 :
12
초록▼
A quasi-isotropic three-dimensional preform and a method of making thereof are disclosed. The preform includes a plurality of woven elements that are braided with each other. The woven elements have one or more integrally woven stiffeners or walls in a direction perpendicular to the plane of the wov
A quasi-isotropic three-dimensional preform and a method of making thereof are disclosed. The preform includes a plurality of woven elements that are braided with each other. The woven elements have one or more integrally woven stiffeners or walls in a direction perpendicular to the plane of the woven element. The preform may be used in forming a fiber reinforced composite.
대표청구항▼
1. A quasi-isotropic three-dimensional preform comprising: at least three individual woven elements braided with each other to form a preform skin,wherein each of said individual woven elements is a fabric strip formed by interweaving a plurality of warp and weft yarns or fibers, each woven element
1. A quasi-isotropic three-dimensional preform comprising: at least three individual woven elements braided with each other to form a preform skin,wherein each of said individual woven elements is a fabric strip formed by interweaving a plurality of warp and weft yarns or fibers, each woven element including two or more integrally woven stiffeners or walls in a direction perpendicular to the plane of the preform skin,wherein the at least three individual woven elements are braided with each other such that two integrally woven stiffeners from each of three individual woven elements form a hexagonal cell perpendicular on the preform skin, andwherein said two or more integrally woven stiffeners are formed from the individual woven elements. 2. The preform of claim 1, wherein said two or more integrally woven stiffeners in said individual woven elements together form quasi-isotropic off-axis or hexagonal stiffeners in said preform. 3. The preform of claim 1, wherein said two or more integrally woven stiffeners in said individual woven elements are formed by folding a portion of said individual woven elements in a loop. 4. The preform of claim 3, wherein a bottom portion of said loop is stitched to the base of said individual woven elements. 5. The preform of claim 1, wherein said individual woven elements are multilayer woven fabrics. 6. The preform of claim 5, wherein one or more integrally woven stiffeners in said at least three individual woven elements are formed by cutting and folding a portion of a top layer in said multilayer woven fabric. 7. The preform of claim 1, wherein said two or more integrally woven stiffeners in said individual woven elements are formed on a loom. 8. The preform of claim 1, wherein a warp fiber pattern in said woven elements is a pattern selected from the group consisting of ply-to-ply, orthogonal, and angle interlock. 9. The preform of claim 1, wherein said warp and weft yarns or fibers are selected from the group consisting of carbon, nylon, rayon, fiberglass, cotton, ceramic, aramid, polyester, and metal yarns or fibers. 10. The preform of claim 2, wherein said quasi-isotropic off-axis or hexagonal stiffeners in said individual woven preforms are formed at 0 degrees, and +/−60 degrees orientation. 11. A fiber reinforced composite comprising a quasi-isotropic three-dimensional preform comprising: at least three individual woven elements braided with each other to form a preform skin,wherein each of said individual woven elements is a fabric strip formed by interweaving a plurality of warp and weft yarns or fibers, each individual woven element including two or more integrally woven stiffeners or walls in a direction perpendicular to the plane of the preform skin,wherein the at least three individual woven elements are braided with each other such that two integrally woven stiffeners from each of three individual woven elements form a hexagonal cell perpendicular on the preform skin, andwherein said two or more integrally woven stiffeners are formed from the individual woven elements. 12. The composite of claim 11, wherein said two or more integrally woven stiffeners in said woven elements together form quasi-isotropic off-axis or hexagonal stiffeners in said preform. 13. The composite of claim 11, wherein said warp and weft yarns or fibers are selected from the group consisting of carbon, nylon, rayon, fiberglass, cotton, ceramic, aramid, polyester, and metal yarns or fibers. 14. The composite of claim 12, wherein said quasi-isotropic off-axis or hexagonal stiffeners in said preform are formed at 0 degrees, and +/−60 degrees orientation. 15. The composite of claim 11, further comprising a matrix material. 16. The composite of claim 15, wherein said matrix material is a resin, and said composite is formed from a process selected from the group consisting of resin transfer molding and chemical vapor filtration. 17. The composite of claim 15, wherein said matrix material is selected from the group consisting of epoxy, bismaleimide, polyester, vinyl-ester, ceramic, and carbon.
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이 특허에 인용된 특허 (12)
Malek Ahmed Ezzeldin ; Pastore Christopher Michael, Automated three-dimensional method for making integrally stiffened skin panels.
Darrieux Jean-Louis (Saint-Medard-en-Jalles FRX), Method for producing a fiber reinforcement for a component of composite material, and composite component comprising suc.
Siegling Hans-Friedrich (Egmating DEX) Bottger Wolfgang (Kodnitz DEX) Biedermann Kurt (Kulmbach DEX), Woven fabric structure and process of manufacture.
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