THE EFFECT OF PLASTIC DEFORMATION ON THE STRAIN ENERGY RELEASE RATE IN A CENTRALLY NOTCHED PLATE SUBJECTED TO UNIAXIAL TENSION

Abstract

By using the Dugdale model for a crack in a plate, an improved formula was derived for the strain energy release rate, G. The formula has the same form as the solution for a linear elastic plate, except a correction factor is used which corrects for both the effect of yielding and the finite width of the plate. Curves are presented giving the values of the correction factor, and they indicate that the nominal stress to yield stress ratio has a pronounced effect on the strain energy release rate.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1966
Accession Number
AD0632454

Entities

People

  • Royce G. Forman

Organizations

  • Flight Dynamics Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Agreements
  • Air Force
  • Air Force Facilities
  • Boundaries
  • Cartesian Coordinates
  • Computer Programming
  • Crack Tips
  • Cracks
  • Equations
  • Fracture (Mechanics)
  • Governments
  • Mechanics
  • Modulus Of Elasticity
  • Plastic Deformation
  • Plastic Explosives
  • United States Government

Readers

  • Approximation Theory.
  • Mechanical Engineering/Mechanics of Materials.
  • Structural Dynamics.