Accession Number:

ADA155330

Title:

Effects of Weak Interfaces on Thermostructural Behavior of Carbon-Carbon Composites.

Descriptive Note:

Annual rept. 1 Dec 84-31 Mar 85,

Corporate Author:

JORTNER RESEARCH AND ENGINEERING INC COSTA MESA CA

Personal Author(s):

Report Date:

1985-03-31

Pagination or Media Count:

59.0

Abstract:

Continuing research into mechanical and thermal behavior of carbon-carbon composites is described. Results presented include a theory for tensile fracture of yarn-bundles in which the fiber-matrix interface is weak, a minimechanical shear-lag analysis of thermal expansion of 3D carbon-carbons showing that interconstituent slippage has large effects on thermal expansion test data, a discussion of the role of radial yarns during heat treatment of cylindrical 3D billets, and an initial analysis of the effects on constitutive behavior of strain-induced microscale rotations of fibers.

Subject Categories:

  • Laminates and Composite Materials
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE