Accession Number : ADA304450

Title :   Design, Durability and Low-Cost Processing Technology for Composite Fan Exit Guide Vanes.

Descriptive Note : Contract rept.,

Corporate Author : UNITED TECHNOLOGIES CORP HARTFORD CT

Personal Author(s) : Blecherman, S. S.

PDF Url : ADA304450

Report Date : AUG 1979

Pagination or Media Count : 150

Abstract : A program was conducted to design, fabricate and test a durable, low cost, lightweight composite fan exit guide vane for high bypass ratio gas turbine engine application. Eight candidate material/design combinations were evaluated by NASTRAN finite element analyses. A total of four combinations were selected for further analytical evaluation, part fabrication by two vendors and fatigue test in dry and wet condition. A core and shell vane design was chosen in which the unidirectional graphite core fiber was the same for all candidates. The shell material, fiber orientation and ply configuration were varied. Material tests were performed on raw material and composite specimens to establish specification requirements. Pretest and post-test microstructural examination and nondestructive analyses were conducted to determine the effect of material variations on fatigue durability and failure mode. The program provided relevant data with respect to design analysis, materials properties, inspection standards, improved durability, weight benefits and part price of the composite fan exit guide vane. jg p2

Descriptors :   *LOW COSTS, *PROCESSING, *COMPOSITE MATERIALS, *GUIDE VANES, TEST AND EVALUATION, REQUIREMENTS, CORES, NONDESTRUCTIVE TESTING, SPECIFICATIONS, MATERIALS, FINITE ELEMENT ANALYSIS, FAILURE, ORIENTATION(DIRECTION), TEST METHODS, FABRICATION, COMPOSITE STRUCTURES, CARBON FIBERS, SHELLS(STRUCTURAL FORMS), GAS TURBINES, WETTING, INSPECTION, STANDARDS, LIGHTWEIGHT, ENGINES, FANS, DESIGN CRITERIA, EXITS, FATIGUE TESTS(MECHANICS), DRYING, UNIDIRECTIONAL.

Subject Categories : Laminates and Composite Materials
      Mechanics
      Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE