Wave Propagation, Elastodynamic Stress Singularities and Fracture

Abstract

The singular part of the elastodynamic field in the vicinity of a crack tip plays an important role in fracture mechanics considerations. In this paper analytical, numerical and experimental methods to determine near-tip elastodynamic fields are reviewed, and the interpretation of stress intensity factors is discussed within the context of the fracture criterion of the balance of rates of energies. Elastodynamic effects generated by rapid propagation of the crack as well as by the diffraction of incident stress waves are considered. Propagation in the plane of the crack, as well as skew crack propagation and crack bifurcation are investigated.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1976
Accession Number
ADA029665

Entities

People

  • Jan D. Achenbach

Organizations

  • Northwestern University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Civil Engineering
  • Computational Science
  • Computations
  • Crack Propagation
  • Cracks
  • Differential Equations
  • Diffraction
  • Elastic Waves
  • Explosive Charges
  • Fracture (Mechanics)
  • Mechanics
  • Stress Intensity Factors
  • Stress Waves
  • Stresses
  • Wave Equations
  • Wave Propagation
  • Waves

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Materials Science (Mechanical Engineering).