Damage Interaction in Composites.

Abstract

The purpose of the experimental study was to investigate the effects of foreign object damage (FOD) on the bending fatigue characteristics of a composite material, unidirectional boron/aluminum-6061. Fatigue curves were generated for a control group and each of four levels of FOD. The composite was further characterized by static tensile, static bending, and nondestructive tests. All tests were carried out at room temperature. A similar damage and fatigue analysis was done for a titanium alloy, Ti-6Al-4V, to provide baseline data with which to compare the composite. It was concluded that the composite suffers more physical damage and a greater percentage reduction in fatigue strength than does Ti-6Al-4V for a given impact energy. (Modified author abstract)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1973
Accession Number
AD0769927

Entities

People

  • Terry D. Gray

Organizations

  • Air Force Institute of Technology

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Alloys
  • Aluminum
  • Composite Materials
  • Foreign Object Damage
  • Impact
  • Materials
  • Titanium
  • Titanium Alloys
  • Unidirectional

Fields of Study

  • Materials science

Readers

  • Aerospace Engineering
  • Materials Science (Mechanical Engineering).
  • Reinforced Composite Materials