Crack Arrest Fracture Toughness of Armor Steels.

Abstract

A method for evaluating break up, or shattering anc cracking may be by the use of the crack arrest fracture toughness, Ka. Use of this Ka would not be restricted to steels, but could be applied to other armor materials also. The crack arrest fracture toughness, KIa, of the two steels were shown to be different, the 4130 being tougher than 4340. The significance of this can only be ascertained by comparing these results with ballistic test data. Keywords: High strength steels; Armor plate; Transition temperatures; Fracture toughness; Mechanical properties; Dynamic properties; Crack propagations; Ballistic testing.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1987
Accession Number
ADA187711

Entities

People

  • E. J. Ripling

Organizations

  • Battelle Memorial Institute

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Armor Plate
  • Crack Propagation
  • Cracks
  • Engineering
  • Ferrium
  • Hardness
  • Materials
  • Materials Science
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Military Research
  • Stress Intensity Factors
  • Stresses
  • Test Methods
  • Yield Strength

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Explosive Engineering.
  • Materials Science (Mechanical Engineering).