Fracture Toughness of High Strength Steel Predicted from Charpy Energy or Reduction-in-Area

Abstract

Analysis is presented of the results of an extensive mechanical and fracture test program. Ninety-six hollow cylinder forgings of A723 steel with five different manufacturing processes were tested at two locations with different outer diameters. Yield strength, plane-strain fracture toughness, Charpy impact energy, and tensile reduction-in-area were measured and analyzed for statistical variation and difference of mean value. Linear regression was used to fit lines to the data and to determine correlation coefficients. Conclusions were drawn as to the suitability of Charpy energy and reduction-in-area as predictors of plane-strain fracture toughness. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1982
Accession Number
ADA123760

Entities

People

  • G. S. Leger
  • John H. Underwood

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Coefficients
  • Correlation Analysis
  • Engineering
  • Fracture (Mechanics)
  • Frequency
  • Impact Tests
  • Materials
  • Mechanics
  • Military Research
  • Normal Distribution
  • Probability
  • Probability Distributions
  • Statistical Analysis
  • Statistical Tests
  • Statistics
  • Toughness
  • Yield Strength

Readers

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