Accession Number:

ADA014937

Title:

Acoustic Emission of Graphite and Boron Fiber-Reinforced Aluminum Composites during Deformation and Fracture.

Descriptive Note:

Final rept.,

Corporate Author:

ARMY MATERIALS AND MECHANICS RESEARCH CENTER WATERTOWN MASS

Personal Author(s):

Report Date:

1975-06-01

Pagination or Media Count:

21.0

Abstract:

Experimental acoustic emission techniques of sound detection and analyses of pulse rate and pulse count as a means of evaluating fiber-reinforced composites are discussed. Since the stress-strain relationship for the composite, before fracture, was also obtained using conventional mechanical tension test equipment, it was possible to detect that region strain where significant fiber fracture began for a particular composite specimen. The composite materials of interest included graphite fiber-reinforced aluminum alloy 7000, boron fiber-reinforced aluminum alloy 6061, and boron fiber-reinforced aluminum alloy 2024. Author

Subject Categories:

  • Laminates and Composite Materials
  • Acoustics
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE