THE ELASTIC BUCKLING STRENGTH OF NEAR-PERFECT DEEP SPHERICAL SHELLS WITH IDEAL BOUNDARIES

Abstract

Two accurately machined hemispherical shells bound by ring-stiffened cylinders designed to provide ideal edge conditions were tested under hydrostatic pressure to determine the elastic buckling strength of near-perfect deep spherical shells. Ratios of experimental collapse pressure to the pressure calculated by using the classical small-deflection theory of 0.73 and 0.90 were obtained. The ratio of 0.90 is considerably higher than the ratios obtained in previous tests recorded in the literature. Since these models had small, unavoidable imperfections, the experimental results lend considerable support to the validity of the small-deflection analysis for the elastic buckling strength of initially perfect spheres.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1963
Accession Number
AD0416057

Entities

People

  • Martin A. Krenzke

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundaries
  • Equations
  • Fabrication
  • Geometry
  • Government Procurement
  • Hemispheres
  • Hemispherical Shells
  • Machining
  • Mathematics
  • Measurement
  • Mechanics
  • Model Basins
  • Residual Stress
  • Ring Stiffened Cylinders
  • Stiffened Cylinders
  • Strain Gages
  • Tank Guns

Fields of Study

  • Physics

Readers

  • Structural Dynamics.