Dynamic Crack Curving - A Photoelastic Evaluation.

Abstract

The objective of the present study is to derive a dynamic crack curving criterion applicable to both mode I and combined modes I and II crack tip deformation. To this goal, dynamic extension of two static crack curving criteria, that is the maximum circumferential stress criterion and the minimum strain energy density criterion at a critical distance rc, was considered. The developed theoretical relations were evaluated numerically and crack velocity on crack curving direction were deduced. Crack curving angles predicted by the two dynamic crack curing criteria were then compared with experimental results, obtained from past dynamic photoelastic investigation.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1981
Accession Number
ADA107238

Entities

People

  • Albert S. Kobayashi
  • M. Ramulu

Organizations

  • University of Washington

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Crack Propagation
  • Crack Tips
  • Cracks
  • Data Reduction
  • Engineering
  • Equations
  • Mechanical Engineering
  • Mechanics
  • Military Research
  • Near Field
  • Stress Intensity Factors
  • Stress Waves
  • Stresses
  • Test And Evaluation
  • United States
  • United States Government
  • Universities

Fields of Study

  • Engineering

Readers

  • Fluid Dynamics.
  • Structural Dynamics.
  • Structural Health Monitoring of Composite Structures.