Composite structures having composite-to-metal joints and method for making the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-037/00
C22C-014/00
B32B-003/06
B32B-003/14
B32B-037/02
B32B-003/18
B32B-005/26
B32B-015/14
B64C-001/06
B32B-007/12
B32B-007/14
B32B-015/01
B29C-070/86
B32B-005/28
B29L-031/30
B29K-703/06
출원번호
US-0716171
(2012-12-16)
등록번호
US-8894801
(2014-11-25)
발명자
/ 주소
Griess, Kenneth Harlan
Georgeson, Gary E.
출원인 / 주소
The Boeing Company
대리인 / 주소
Yee & Associates, P.C.
인용정보
피인용 횟수 :
3인용 특허 :
83
초록
A composite structure comprises stacked sets of laminated fiber reinforced resin plies and metal sheets. Edges of the resin plies and metal sheets are interleaved to form a composite-to-metal joint connecting the resin plies with the metal sheets.
대표청구항▼
1. A method of fabricating a composite structure, comprising: forming a multi-layer composite lay-up having a fiber reinforced composite resin portion and a metal portion, including forming a composite-to-metal finger joint between the composite resin portion and the metal portion of the lay-up, whe
1. A method of fabricating a composite structure, comprising: forming a multi-layer composite lay-up having a fiber reinforced composite resin portion and a metal portion, including forming a composite-to-metal finger joint between the composite resin portion and the metal portion of the lay-up, wherein the composite resin portion comprises laminated plies of fiber reinforced resin, wherein the metal portion consists of metal sheets and an adhesive layer between each of the metal sheets; andforming a transition section between the composite resin portion and the metal portion, the transition section including staggered overlaps between the laminated plies and the metal sheets, the transition section configured such that corresponding first ends of each of the metal sheets abut corresponding second ends of the laminated plies, and the staggered overlaps comprise a waveguide configured to support non-destructive evaluations of a bond quality in the composite structure. 2. A method of laying up a structure, comprising: laying up a first plurality of composite plies, the first plurality of composite plies having a first combined thickness, the first plurality of composite plies having a first end;laying up a first metal layer, the first metal layer having a second end abutting the first end at a first interface;placing a first adhesive layer on the metal layer, the first adhesive layer and the first metal layer together having a second combined thickness equal to the first combined thickness;laying up a second plurality of composite plies over the first plurality of composite plies, the second plurality of composite plies having a third combined thickness, the second plurality of composite plies having a third end;laying up a second metal layer over the first adhesive layer, the second metal layer having a fourth end, the third end abutting the fourth end at a second interface, the first interface and the second interface staggered with respect to each other. 3. The method of claim 2 further comprising: placing a second adhesive layer over the second metal layer, the second adhesive and the second metal layer together having a fourth combined thickness equal to the third combined thickness;laying up a third plurality of composite plies over the second plurality of composite plies, the third plurality of composite plies having a fifth combined thickness, the third plurality of composite plies having a fifth end;laying up a third metal layer over the second adhesive layer, the third metal layer having a sixth end, the fifth end abutting the sixth end at a third interface, and the first interface, the second interface, and the third interface all staggered with respect to each other. 4. The method of claim 3, wherein the first metal layer, the second metal layer, the third metal layer, the first interface, the second interface, and the third interface together form an ultrasonic waveguide. 5. The method of claim 4 further comprising: using ultrasonic waves to analyze a condition of bondlines in the structure. 6. The method of claim 3, wherein the first interface, the second interface, and the third interface together form nested tabs. 7. The method of claim 2, wherein the first metal layer, the second metal layer, the first interface, and the second interface together form an ultrasonic waveguide. 8. The method of claim 7 further comprising: using ultrasonic waves to analyze a condition of bondlines in the structure. 9. The method of claim 2, wherein laying up the first metal layer includes trimming the first metal layer to a first desired size and shape, and wherein laying up the second metal layer includes trimming the second metal layer to a second desired size and shape. 10. The method of claim 2 further comprising: after laying up the second metal layer, compacting the structure. 11. The method of claim 10, wherein compacting comprises using a vacuum bagging process. 12. The method of claim 10 further comprising: after compacting, curing the structure. 13. The method of claim 11 further comprising: after curing, trimming the structure. 14. The method of claim 12 further comprising: forming a component of an aircraft using the structure. 15. The method of claim 14 further comprising: forming the aircraft using the component.
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