Influence of End-Closure Stiffness on Behavior of Concrete Cylindrical Hulls Subjected to Hydrostatic Loading

Abstract

Twelve model concrete cylindrical hulls were subjected to hydrostatic loading to determine the influence of end-closure stiffness on implosion pressure and strain behavior of the cylinders. Results showed that variation of end-closure stiffness did not reduce the implosion pressure below that of a cylinder with a free end condition or below the implosion pressure predicted by elastic thick-wall theory. To vary the closure stiffness, concrete hemisphere and steel plate end closures were used to simulate free, pinned, beveled, and fixed end conditions. Strain variations along the length of the cylinders indicated that the influence of the closure was limited to a distance of one diameter from the closure. Recommendations are presented to aid in the design of concrete cylindrical hulls.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1971
Accession Number
AD0732363

Entities

People

  • L. F. Kahn

Organizations

  • Naval Facilities Engineering Service Center

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Civil Engineering
  • Concrete
  • Construction
  • Diameters
  • Engineering
  • Failure Mode And Effect Analysis
  • Finite Element Analysis
  • Geometry
  • Materials
  • Mechanical Properties
  • Mechanics
  • Modulus Of Elasticity
  • Physical Properties
  • Stiffness
  • Stress Strain Relations
  • Thick Walls
  • Walls

Readers

  • Structural Dynamics.