Correlation between Fracture Toughness, Charpy V-Notch Impact Energy, and Yield Strength for ASTM A723 Steel

Abstract

A large quantity of data for ASTM A723 steel correlating yield strength, Charpy impact energy, and fracture toughness has been compared with the Rolfe-Novak-Barsom correlation. The general conclusion is that this correlation is conservative, because if we estimate fracture toughness from Charpy impact energy measurements, the estimated toughness is less than the measured value. The data may be somewhat questionable, however, because the fracture toughness and Charpy impact energy measurements were taken at different temperatures. The results indicate that for correlation purposes, the Rolfe- Novak-Barsom relationship is an adequate estimate of fracture toughness based on Charpy impact energy and yield strength measurements. Fracture toughness, Impact energy, High strength steel, Correlation, Yield strength, Pressure vessel.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1992
Accession Number
ADA249142

Entities

People

  • J. A. Kapp
  • John H. Underwood

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Databases
  • Engineering
  • Ferrium
  • Fracture (Mechanics)
  • High Pressure
  • Low Temperature
  • Materials
  • Measurement
  • Mechanics
  • Military Research
  • Pressure Vessels
  • Standards
  • Steel
  • Toughness
  • Yield Strength

Readers

  • Materials Science (Mechanical Engineering).
  • Regression Analysis.