Accession Number : ADA303679

Title :   Composite Material Application to Liquid Rocket Engines.

Descriptive Note : Final rept.,

Corporate Author : AEROJET LIQUID ROCKET CO SACRAMENTO CA

Personal Author(s) : Judd, D. C.

PDF Url : ADA303679

Report Date : DEC 1982

Pagination or Media Count : 315

Abstract : The major objectives of this study were to (1) determine the extent to which composite materials can be beneficially used in liquid rocket engines, (2) identify additional technology requirements, and (3) determine those areas which have the greatest potential for return. The assessment was based primarily on weight savings but also considered material and fabrication costs, performance, life, and maintainability factors. Two baseline designs, representative of earth-to-orbit and orbit-to-orbit engine systems, were selected for analysis. All components of these baseline designs were evaluated to determine which could benefit most from fabrication with composites. Weight savings from 50 to 80t were predicted for selected components with the substitution of reinforced plastic composite (RPC) materials for metal, and overall engine weight savings from 25 to 30% were found possible. Various technology needs were identified before RPC material could be used in rocket engine applications, and follow-on activities addressing these needs were proposed. Metallic or ceramic composites offered advantages in high-temperature or performance-driven applications but otherwise were not competitive to RPC on the basis of weight or cost. (MM)

Descriptors :   *METAL MATRIX COMPOSITES, *LIQUID PROPELLANT ROCKET ENGINES, *PLASTICS, *REINFORCED PLASTICS, RISK, DEGRADATION, STRESS ANALYSIS, POLYMERS, COMPOSITE MATERIALS, STRUCTURAL ANALYSIS, FABRICATION, HEAT EXCHANGERS, TOUGHNESS, MATRIX MATERIALS, CERAMIC MATERIALS, MAINTAINABILITY, FREEZING, LIGHTWEIGHT, IGNITION, COOLANTS, THAWING, VALVES, LIQUID HYDROGEN, DESIGN CRITERIA, EPOXY RESINS, FASTENINGS, BOOSTER ROCKET ENGINES, WEIGHT REDUCTION, HOUSINGS, THERMAL STRESSES, ADHESIVES, TECHNOLOGY FORECASTING, GRAPHITE EPOXY COMPOSITES, ROCKET NOZZLES, GIMBALS, THRUST CHAMBERS, JET VANES, IMPELLERS.

Subject Categories : Laminates and Composite Materials
      Liquid Propellant Rocket Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE