Damage Mechanisms and Failure of 3-D Carbon-Carbon Composites.

Abstract

Mechanical property characterization tests were conducted on specimens from a three-dimensional, cartesian orthogonally woven carbon-carbon (C-C) material. Tests consisted of tensile and rail shear, which were conducted at room temperature, and compression tests conducted at room temperature up to 2165 C (3930 F). Stress-strain characteristics and acoustic emission instrumentation were employed to infer the mechanics of the fracture initiation process. In addition, a specially developed axial loading stage integral to SwRI's ETEC scanning electron microscope facility was used to view and videotape the crack initiation and development processes. As a result of these studies, a tentative model is described to explain the mechanics of failure in 3-D C-C composites. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1979
Accession Number
ADA066649

Entities

People

  • Craig T. Robinson
  • Philip H. Francis

Organizations

  • Southwest Research Institute

Tags

Communities of Interest

  • Air Platforms
  • Cyber
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Emissions
  • Carbon Carbon Composites
  • Composite Materials
  • Engineers
  • Failure Mode And Effect Analysis
  • Jet Propulsion
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Modulus Of Elasticity
  • Stress Strain Relations
  • Three Dimensional

Readers

  • Combustion and Flow Dynamics.
  • Materials Science (Mechanical Engineering).
  • Systems Analysis and Design

Technology Areas

  • AI & ML
  • AI & ML - Bayesian Inference
  • Microelectronics