The Interaction between Line Force Arrays and Planar Cracks.

Abstract

The utility of line force fields in computer simulations of lattice defects is discussed. These fields are shown to provide a facile method for introducing realistic flexible boundary conditions on simulated atomic crystallites. The pertinent elastic fields for line force arrays lying parallel to the tip of a planar crack are presented. The method has been successfully applied to a study of hydrogen embrittlement of alpha-iron. The usage of this type technique is particularly important in the case where nonequilibrium phenomena--such as unstable crack growth--are studied. (Modified author abstract)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1974
Accession Number
AD0783704

Entities

People

  • J. P. Hirth
  • P. C. Gehlen
  • R. G. Hoagland

Organizations

  • Battelle Memorial Institute

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Boundaries
  • Computer Simulations
  • Computers
  • Cooperation
  • Crystallites
  • Embrittlement
  • Engineering
  • Hydrogen
  • Hydrogen Embrittlement
  • Materials Engineering
  • Simulations
  • Simulators
  • Systems Engineering

Readers

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