FRACTURE TOUGHNESS OF D6AC STEEL SHILLELAGH ROCKET MOTOR CASE

Abstract

Burst tests and fracture toughness measurements on D6AC Shillelagh missile motor cases were carried out. The burst testing was done over a temperature range from room temperature down to -200 F. Results of these tests showed that the motor cases burst at approximately 250,000 psi hoop stress regardless of test temperature, and that all fractures were 100 percent shear. Fracture toughness measurements were made on cases containing machined and fatigue-cracked through-the-thickness notches, at room temperature and -65 F. The results of these measurements were in good agreement with previously obtained flat sheet data on similar materials.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1964
Accession Number
AD0606564

Entities

People

  • Robert N. Katz

Organizations

  • United States Army Research Laboratory

Tags

DTIC Thesaurus Topics

  • Chemical Analysis
  • Chemistry
  • Electron Beams
  • Engineering
  • Fabrication
  • Heat Treatment
  • Jet Propulsion
  • Low Temperature
  • Materials
  • Materials Engineering
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Military Research
  • Rocket Engines
  • Solid Propellants
  • Yield Strength

Readers

  • Materials Science (Mechanical Engineering).
  • Mechanical Engineering/Mechanics of Materials.