Line Crack Subject to Antiplane Shear.

Abstract

Field equations of nonlocal elasticity are solved to determine the state of stress in a plate with a line crack subject to a constant antiplane shear. Contrary to the classical elasticity solution, it is found that no stress singularity is present at the crack tip. By equating the maximum shear stress that occurs at the crack tip to the shear stress that is necessary to break the atomic bonds, the critical value of the applied shear is obtained for the initiation of fracture. If the concept of the surface tension is used, one is able to calculate the cohesive stress for brittle materials. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1978
Accession Number
ADA059118

Entities

People

  • A. C. Eringen

Organizations

  • Princeton University

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Applied Mechanics
  • Civil Engineering
  • Crack Tips
  • Cracks
  • Elastic Properties
  • Engineering
  • Equations
  • Materials
  • Mechanical Engineering
  • Mechanics
  • Military Research
  • New York
  • Shear Stresses
  • Stresses
  • Surface Energy
  • Surface Tension

Fields of Study

  • Engineering

Readers

  • Calculus or Mathematical Analysis
  • Materials Science (Mechanical Engineering).