Effects of Load History on Damage Characteristics Near Crack Tips in a Particulate Composite Material

Abstract

The damage field in a precracked particulate composite specimen subjected to a complex cyclic loading history was investigated using acoustic imaging techniques. The acoustic imaging data were analyzed to delineate the damage field ahead of the crack tips and to generate contour plots of the damage intensity. The results of these analyses were compared and the effect of the loading history on the damage field is discussed.

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Document Details

Document Type
Technical Report
Publication Date
Jan 03, 2000
Accession Number
ADA397886

Entities

People

  • Chun Ting Liu

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acoustic Images
  • Air Force
  • Air Force Research Laboratories
  • Composite Materials
  • Crack Tips
  • Cracks
  • Imaging Techniques
  • Intensity
  • Materials
  • Materials Laboratories
  • Materials Testing
  • Mechanics
  • Military Research
  • Nondestructive Testing
  • Solid Propellants
  • Stresses
  • Test Methods

Readers

  • Computer Vision.
  • Materials Science (Mechanical Engineering).