Development of a composite wing primary structure for commercial transport aircraft is being undertaken at McDonnell Douglas under NASA contract. The focus of the program is to design and manufacture a low cost composite wing which can effectively compete with conventional metal wing structures in terms of cost, weight, and ability to withstand damage. These goals are being accomplished by utilizing the stitched/RFI manufacturing process during which the dry fiber preforms consisting of several stacks of warp-knit material are stitched together, impregnated with resin and cured. The stitched/RFI wing skin panels have exceptional damage tolerance and fatigue characteristics, are easily repairable, and can carry higher gross stress than their metal counterparts. This paper gives an overview of the program, describes the key features of the composite wing design and addresses major issues on analysis and manufacturing.
Development of a Stitched/RFI Composite Transport Wing
1995
23 pages
Report
No indication
English
Aircraft , Test Facilities & Equipment , Aircraft construction materials , Aircraft design , Composite structures , Preforms , Reinforcing fibers , Sewing , Transport aircraft , Wing panels , Technology assessment , Fatigue (Materials) , Manufacturing , Resins , Stress analysis , Technology utilization , Tolerances (Mechanics)
Development of a stitched/RFI composite transport wing
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Online Contents | 2016
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