Fracture Toughness Evaluation of Ductile Munitions Material

Abstract

It has been difficult to obtain fracture toughness data from actual artillery projectiles due to the stringent size requirements imposed by linear elastic fracture mechanics. This difficulty could be alleviated by an elastic- plastic stress analysis to determine the fracture toughness. The J-integral offers the most promising solution to this problem. Before applying the J- integral to projectile problems, one must determine if the results of the J- integral will be equivalent to those obtained from the standard K-test using projectile steel. The material chosen for this study was 1340 steel heat treated to 1035 MPa (150,000 psi) yield strength.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1979
Accession Number
ADA076174

Entities

People

  • Carl M. Carman

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Advanced Materials
  • Corporations
  • Fracture (Mechanics)
  • J Integrals
  • Materials
  • Materials Science
  • Materials Testing
  • Mechanical Properties
  • Mechanics
  • Munitions
  • Projectiles
  • Security
  • Standards
  • Stress Analysis
  • Test Methods
  • United States
  • Yield Strength

Readers

  • Materials Science (Mechanical Engineering).
  • Systems Analysis and Design