Stress, Strain, and Deflection in Cracked C-Shaped Specimens

Abstract

Experimental strains and load-line deflections of C-shaped fracture- toughness test specimens are reported as functions of load and increasing crack depth. It is shown that the variation in strain at the outer surface may be used as an indicator of fatigue crack growth for evaluating the critical load in fracture toughness tests. The stresses and load-line deflections are compared with theoretical values calculated for the uncracked specimens. Their relation to the stress intensity factor of the cracked specimen is examined.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1976
Accession Number
ADA027192

Entities

People

  • J. Throop
  • R. Fujczak

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Calibration
  • Compression
  • Cracks
  • Deflection
  • Diameters
  • Elastic Properties
  • Equations
  • Fracture (Mechanics)
  • Geometry
  • Materials
  • Measurement
  • Mechanics
  • Modulus Of Elasticity
  • Strain Gages
  • Stress Intensity Factors
  • Stresses
  • Thickness

Fields of Study

  • Physics

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Pavement Materials Engineering.