INELASTIC BUCKLING TESTS OF RING-STIFFENED CYLINDERS UNDER HYDROSTATIC PRESSURE

Abstract

A series of small machined aluminum models were collapsed under external hydrostatic pressure to study the inelastic buckling of near-perfect ring-stiffened cylinders made of strain-hardening materials. The predominant modes of failure were general instability and axisymmetric shell buckling. Comparisons of test results with the analyses of Lunchick, Krenzke, and Kiernan show promising correlation but additional data would be needed for a complete evaluation. High bending stresses near frames did not noticeably affect axisymmetric shell buckling strength. The presence of frame fillets, however, caused a significant increase in general instability strength although bending stresses in the absence of fillets were relatively low.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1965
Accession Number
AD0617337

Entities

People

  • Lance Boichot
  • Thomas E. Reynolds

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Aluminum
  • Bending Stress
  • Equations
  • Geometry
  • Hydrostatic Pressure
  • Mechanics
  • Modulus Of Elasticity
  • Ring Stiffened Cylinders
  • Ships
  • Stiffened Cylinders
  • Strain Hardening
  • Stress Strain Relations
  • Stresses
  • Test And Evaluation
  • Thickness
  • Yield Strength

Fields of Study

  • Physics

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Structural Dynamics.