Dynamic Fracture Analysis by Moire Interferometry

Abstract

Dynamic moire interferometry was used to measure separately the u- and v-displacement fields surrounding a rapidly propagating crack tip in Homalite-100 and 7075-T6 aluminum alloy plates. This transient crack tip displacement data was then used to compute the dynamic stress intensity factor and the remote stress component. J-integral values was also estimated using the static approximate procedure. This static analysis provided the correct J when the contour integral was taken within 3 mm of the crack tip. (jhd)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1990
Accession Number
ADA230383

Entities

People

  • Albert S. Kobayashi
  • K. Arakawa
  • M. Kosai
  • R. H. Drinnon

Organizations

  • University of Washington

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aluminum Alloys
  • Applied Mechanics
  • Civil Engineering
  • Crack Tips
  • Engineering
  • Fracture (Mechanics)
  • Intensity
  • J Integrals
  • Materials
  • Mechanical Engineering
  • Mechanics
  • Military Research
  • Schools
  • Stress Intensity Factors
  • Stress Strain Relations
  • Stresses
  • Universities

Readers

  • Materials Science (Mechanical Engineering).
  • Regression Analysis.