On Steady Quasi-Static Crack Growth.

Abstract

Aspects of crack growth in an elastic-plastic material under quasi-static, steady conditions are investigated for plane problems. A path-independent line integral is identified for the steady problem which generalizes the J-integral of deformation theory plasticity to incremental theories of plasticity. Implications of the integral for small scale yielding crack growth are discussed. A model study is made of the effect on the growth process of the residual plastic wake left behind the advancing crack. The influence of the wake on the stabilization of crack growth is discussed.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1974
Accession Number
AD0782486

Entities

People

  • John W. Hutchinson

Organizations

  • Harvard University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Crack Propagation
  • Crack Tips
  • Cracks
  • Elastic Materials
  • Engineering
  • Equations
  • Intensity
  • Materials
  • Plastic Deformation
  • Plastic Flow
  • Plastic Properties
  • Residuals
  • Stress Intensity Factors
  • Stresses
  • Surface Energy
  • United States

Readers

  • Control Systems Engineering.
  • Materials Science (Mechanical Engineering).