Bradiding machinery can be adapted to produce low cost, high permance composite parts. fiber impregnation had been a limiting factor in the usefulness of braiding. preimpregnated fibers are expensive and braid poorly because of the resin tack. the proposed resin applicator ring will provid… More

High performance porous materials are needed for the development of laminar flow technology. laminar flow control in aircraft could provide fuel savings up to 20%. in submersibles, this technique will reduce both drag and radiated noise. composite materials have advantages for undersea submersibles:… More

Composite materials offer several advantages over metals for portable bridging: weight savings of 25% or more, corrosion and fatigue resistance. the design of a composite structure is complex: composite properties are highly anisotropic, moisture absorption and temperature changes cause considerable… More

The national aero-space plane and advances in propulsion systems will require new composite materials with improved performance in extreme high temperature environments. recent experience with composites in airframes has indicated that stress concentrations due to fasteners and cut-outs is the… More

Funding for this topic was not received on station until the end of June 93. The procurement request was already in contracting when the funding finally came. Unfortunately, the contract was being worked on when NAVAIR recalled the funding in late July 1992. Funds were re-instated 15 June 93,… More

Composite materials have advantages for rocket motor cases: lightweight, high strength, and favorable 'insensitive munitions' behavior. wet braidiig offers economic advantages over filament winding for the production of composite cases. however, there are several areas in which improvements in the… More