Dynamic Crack Curving and Branching under Biaxial Loading.

Abstract

A 16 spark-gap camera was used to record the dynamic photoelastic patterns of ten centrally cracked, Homalite-100 specimens which fractured under ten biaxial stress ratios ranging from 3.7 to 0. The dynamic photoelastic patterns of curved cracks were used to verify the previously developed dynamic crack curving criterion. Cracks, which immediately curved upon propagation in three specimens under high biaxial loadings, were used to verify the static counterpart of the dynamic crack curving criterion. A previously developed dynamic crack branching criterion was verified by the dynamic photoelastic results involving cracks which eventually branched under low biaxial loadings.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1985
Accession Number
ADA151451

Entities

People

  • Albert S. Kobayashi
  • B. S. J. Kang
  • J. S. Hawong
  • M. Ramulu
  • M. S. Dadkhah

Organizations

  • University of Washington

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Crack Propagation
  • Crack Tips
  • Cracks
  • Engineering
  • Intensity
  • Load Cells
  • Mechanical Engineering
  • Military Research
  • Modulus Of Elasticity
  • Poisson Ratio
  • Spark Gaps
  • Strain Gages
  • Stress Intensity Factors
  • Stress Waves
  • Stresses
  • Universities

Readers

  • Human-Computer Interaction (HCI).
  • Mechanical Engineering/Mechanics of Materials.
  • Structural Health Monitoring of Composite Structures.