Accession Number : ADA302652

Title :   Diffusion Bonded Boron/Aluminum Spar-Shell Fan Blade.

Descriptive Note : Final rept. Jun 77-May 78,

Corporate Author : UNITED TECHNOLOGIES CORP WINDSOR LOCKS CT HAMILTON STANDARD DIV

Personal Author(s) : Carlson, C. E. ; Cutler, J. L. ; Fisher, W. J. ; Memmott, J. V.

PDF Url : ADA302652

Report Date : JUN 1980

Pagination or Media Count : 112

Abstract : The Diffusion Bonded Boron/Aluminum Spar-Shell Fan Blade Program consisted of a design and a process development tasks intended to demonstrate composite blade application in large high-bypass ratio turbofan engines. The design task included selection of a representative airfoil model; a preliminary design effort, which included parametric studies of component materials and geometries, leading to the selection of two candidate designs, subject to NASA Project Manager approval, for detail designing; and a detail design effort on two designs which would lead to pertinent structural property definition and a detailed blade specification drawing. The process development task consisted of a process optimization effort leading to specification with the NASA Project Manager's approval of process parameters to be used in the follow-on effort of fabricating two simulated airfoils, nondestructive evaluation (NDE) measurements including primary frequency testing of sane and delivery of subject airfoil pressings to NASA-Lewis. (AN)

Descriptors :   *TURBOFAN ENGINES, *ALUMINUM ALLOYS, *METAL MATRIX COMPOSITES, *FAN BLADES, STRESS STRAIN RELATIONS, TENSILE STRENGTH, OPTIMIZATION, PARAMETRIC ANALYSIS, NONDESTRUCTIVE TESTING, SPECIFICATIONS, STRUCTURAL PROPERTIES, STATIC LOADS, DYNAMIC RESPONSE, FABRICATION, COMPOSITE STRUCTURES, DIFFUSION BONDING, AIRFOILS, SHELLS(STRUCTURAL FORMS), IMPACT STRENGTH, FEASIBILITY STUDIES, BONDED JOINTS, SHEAR STRESSES, LIGHTWEIGHT, DESIGN CRITERIA, BORON, ASPECT RATIO, TITANIUM ALLOYS, HONEYCOMB STRUCTURES, PRESSING(FORMING), ROTOR BLADES, HIGH BYPASS TURBOFANS.

Subject Categories : Laminates and Composite Materials
      Jet and Gas Turbine Engines
      Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE