Theoretical Buckling Loads of Boron/Aluminum and Graphite/Resin Fiber-Composite Anisotropic Plates.

Abstract

Theoretical results are presented for the buckling of anisotropic plates. The plates are subjected to simple and combined in-plane loading. The plates are made from fiber composite material of boron/aluminum or high-modulus graphite/resin. The results are presented in nondimensional form as buckling load against fiber orientation angle for various plate aspect ratios. The results indicate that buckling loads of boron/aluminum plates are independent of fiber direction if the plate aspect ratios are greater than about 1, and moderately dependent when this ratio is less than about 1. In addition, the results indicate that the buckling loads are independent of aspect ratio for plates with aspect ratios greater than about 2. Boron/aluminum composite plates can resist buckling loads more efficiently than graphite/resin composites on a specific buckling stress basis. The numerical algorithm and a listing of the computer code used to obtain the results are included.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1971
Accession Number
ADA309269

Entities

People

  • Christos C. Chamis

Organizations

  • Glenn Research Center

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aeronautics
  • Algorithms
  • Aspect Ratio
  • Composite Materials
  • Computer Programs
  • Computers
  • Eigenvalues
  • Epoxy Composites
  • Equations
  • Galerkin Method
  • Graphitic Materials
  • Materials
  • Mechanics
  • Orientation (Direction)
  • Resins
  • Resonant Frequency
  • Unidirectional

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Mechanical Engineering/Mechanics of Materials.
  • Reinforced Composite Materials