Accession Number : ADA307452

Title :   Boron/Aluminum - Graphite/Resin Advanced Fiber Composite Hybrids.

Descriptive Note : Technical note,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CEN TER

Personal Author(s) : Chamis, Christos C. ; Lark, Raymond F. ; Sullivan, Timothy L.

PDF Url : ADA307452

Report Date : FEB 1975

Pagination or Media Count : 27

Abstract : An investigation was conducted to determine the fabrication feasibility and to assess the potential of an adhesively bonded metal and resin matrix fiber-composite hybrid as an advanced material for aerospace and other structural applications. The results of fabrication studies and of the evaluation of physical and mechanical properties show that using this hybrid concept makes possible a composite design which, when compared with nonhybrid composites, has greater transverse strength, transverse stiffness, and impact resistance with only a small penalty on density and longitudinal properties. The results also show that laminate theory is suitable for predicting the structural response of such hybrids. The sequence of fracture modes indicates that these types of hybrids can be readily designed to meet fail-safe requirements.

Descriptors :   *LAMINATES, *FIBER REINFORCED COMPOSITES, DENSITY, TENSILE STRENGTH, COMPOSITE MATERIALS, STIFFNESS, FABRICATION, GRAPHITE, METAL MATRIX COMPOSITES, FRACTURE(MECHANICS), IMPACT STRENGTH, STRUCTURAL RESPONSE, ALUMINUM, BONDED JOINTS, RESIDUAL STRESS, FLEXURAL STRENGTH, AEROSPACE CRAFT, HYBRID SYSTEMS, TITANIUM, FOILS(MATERIALS), BORON, EPOXY RESINS, PLASTICS, METAL JOINTS, ADHESIVE BONDING, UNIDIRECTIONAL.

Subject Categories : Laminates and Composite Materials
      Properties of Metals and Alloys
      Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE