INELASTIC LOBAR BUCKLING OF CYLINDRICAL SHELLS UNDER EXTERNAL HYDROSTATIC PRESSURE

Abstract

A solution to Gerard's differential equations for plastic buckling of cylindrical shells is found for the case of lobar buckling under hydrostatic pressure. An approximate formula based on this solution is then obtained for buckling in the inelastic region. According to this formula, the buckling pressure is a function of the cylinder geometry and the secant and tangent moduli as determined from a stress-strain intensity diagram for the shell material. Agreement with experiments on ring-stiffened cylinders is found to be within 4 percent.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1960
Accession Number
AD0491094

Entities

People

  • Thomas E. Reynolds

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Collapse
  • Compression
  • Differential Equations
  • Equations
  • Experimental Data
  • Hardening
  • Hydrostatic Pressure
  • Mechanics
  • Model Basins
  • Modulus Of Elasticity
  • Plastic Properties
  • Ring Stiffened Cylinders
  • Ship Model Basins
  • Stiffened Cylinders
  • Strain Hardening
  • Stress Strain Relations
  • Stresses

Fields of Study

  • Physics

Readers

  • Structural Dynamics.