Flightworthy Graphite Fiber Reinforced Composite Aircraft Primary Structural Assemblies. Volume II. Tasks 3 Through 12.
Abstract
The report presents a detailed description of progress to design, fabricate, and test five graphite composite structural demonstration items. Significant advancements toward making graphite composite materials reproducible and cost effective for primary aircraft applications are reported. Over 100 combinations of graphite-resin combinations have been evaluated and considered for use in fabricating program demonstration items. Destructive and non-destructive test procedures to characterize graphite fibers, resins, laminates, and built-up assemblies have also been developed. A design philosophy for the transverse ply strain sensitive material system B selected for the leading edge flap is reported. An optimization procedure which accounts for stiffness, strength, and stability has been developed. The fabrication of each demonstration item, including a description of the problems and solutions encountered in their manufacture, is described. Static test data for the main landing gear door, the speed brake, and selected components to support the design of the leading edge flap are presented. Process specifications to define manufacturing sequences for each demonstration item are complete and described. The concept studies in order to arrive at cost effective tradeoff parameters for the F-5 flight envelopes are presented. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1970
- Accession Number
- AD0877235
Entities
People
- Robert D. Hayes