Advanced Composite Wing and Empennage to Fuselage Attachment Fittings.
Abstract
The structural development of advanced Composite Fittings for highly loaded wing and empennage to fuselage attachment is described. The program investigates general fitting elements such as lugs -both laminated and wrapped and laminated corners, plus the most generally utilized discrete fitting types. Fittings such as male lugs, female lugs, bathtubs, daggers, and tees are developed in composite materials, fabricated and tested. The full spectrum of composite materials is employed including graphite/ epoxy, boron/epoxy, boron/aluminum, and glass/epoxy. As a final demonstration of the techniques developed, two full scale F-15 main spar lugs are designed, fabricated and tested. These 170,000 pound capacity fittings employ a unique wrapped boron/epoxy lug on a titanium carrier which saves over 20% of the weight of its titanium counterpart. (Author, modified-PL)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1974
- Accession Number
- AD0918604
Entities
People
- D. R. Dunbar
- L. May
- M. Weisinger
- R. E. Bender
- W. H. Schaefer
Organizations
- General Dynamics