Accession Number:

AD0630251

Title:

ELASTIC MODULI OF COMPOSITE MATERIALS REINFORCED WITH ORTHOTROPIC FILAMENTS.

Descriptive Note:

Summary rept. for Aug-Nov 65,

Corporate Author:

AIR FORCE MATERIALS LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1966-01-01

Pagination or Media Count:

22.0

Abstract:

Approximate equations for determining the elastic constants of a unidirectional composite material reinforced with an orthotropic filament are derived. In particular, equations are developed for longitudinal modulus, transverse modulus, Poissons ratio, and shear modulus. Filament and matrix elastic constants and fiber volume percent are the necessary parameters for determining these constants. Classical theory of elasticity is applied to a composite unit cell resulting in closed form solutions. Airy stress functions are applied to the fiber and matrix with boundary conditions requiring continuity of displacements across the fiber-matrix interface perfect bonding is assumed and continuity of appropriate stresses. Graphical results are shown for transverse modulus and shear modulus. Author

Subject Categories:

  • Laminates and Composite Materials
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE