The Stress Intensity Factor History due to Three Dimensional Transient Loading of the Faces of a Crack,

Abstract

A procedure is described for determining dynamic stress intensity factor histories for a half plane crack in an otherwise unbounded elastic body, with the crack faces subjected to tractions that result in variation of the stress intensity factor along the crack edge. The procedure is based on integral transform methods and the properties of analytic functions of a complex variable. The procedure is illustrated for the case of a pair of opposed line loads suddenly applied on the crack faces along a line perpendicular to the crack edge. An exact expression is obtained for the resulting mode I stress intensity factor as a function of time for any point along the crack edge. Some features of the solution, as well as possible extensions of the procedure, are discussed. Keywords: Boundary value problems; and Three dimensional. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1986
Accession Number
ADA166835

Entities

People

  • Lambert Ben Freund

Organizations

  • Brown University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Analytic Functions
  • Boundary Value Problems
  • Complex Variables
  • Differential Equations
  • Engineering
  • Equations
  • Integral Transforms
  • Integrals
  • Intensity
  • Mechanics
  • Partial Differential Equations
  • Rayleigh Waves
  • Stress Intensity Factors
  • Stresses
  • Theorems
  • Three Dimensional
  • Traction

Readers

  • Linear Algebra
  • Materials Science and Engineering.
  • Structural Health Monitoring of Composite Structures.