Effect of Radius on Bulging and Fracture of Through-Cracked Cylindrical Pressure Vessels at Cryogenic Temperatures

Abstract

Burst tests of through-cracked, thin-walled Cylinders fabricated from Ti-5Al-2.5Sn ELI and 2014-T6 Al were conducted at -320 deg and -423 deg F (77 and 20 K). The diameters of the cylinders tested were approximately 6 and 18 in. (15 and 46 cm). The titanium alloy test results showed the pressure bulge coefficient was essentially constant for these two diameters. Comparison of the experimental results with an expression for predicting hoop fracture stress proposed by Eiber showed a good fit with the aluminum alloy data but a poor fit with the titanium alloy data.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1968
Accession Number
ADA382152

Entities

People

  • Timothy L. Sullivan
  • William S. Pierce

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Autonomy
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Aeronautics
  • Alloys
  • Aluminum Alloys
  • Crack Tips
  • Elongation
  • Experimental Data
  • Fabrication
  • Liquid Hydrogen
  • Materials
  • Mechanical Properties
  • Mechanics
  • Pressure Vessels
  • Scale Models
  • Stresses
  • Titanium
  • Titanium Alloys
  • Yield Strength

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Metallurgy