Exploratory Tests of Cylinders with Various Lightweight Stiffening Systems under External Hydrostatic Pressure

Abstract

Twelve machined cylindrical models with length-todiameter ratios of approximately 5.0 were collapsed under external hydrostatic pressure to study the elastic buckling strength of metallic cylinders stiffened with low modulus, low density, relatively low strength materials. Three different configurations were studied; two-layered shells, continuous-core sandwich shells, and ringstiffened shells. The test results demonstrated that the use of low modulus materials in various stiffening systems can lead to significant increases in the elastic buckling strength of metallic cylindrical shells.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1965
Accession Number
AD0620652

Entities

People

  • John J. Healey

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Epoxy Resins
  • Equations
  • Geometry
  • Hydrostatic Pressure
  • Inertia
  • Lightweight
  • Low Density
  • Materials
  • Mechanical Properties
  • Mechanics
  • Model Tests
  • Modulus Of Elasticity
  • Reinforced Plastics
  • Resins
  • Syntactic Foams
  • Thickness
  • Unmanned Underwater Vehicles

Fields of Study

  • Physics

Readers

  • Structural Dynamics.