Polymer-Impregnated Concrete Spherical Hulls under Hydrostatic Loading

Abstract

Eight spherical models with outside diameters of 16 inches and wall thicknesses of 1 or 2 inches were fabricated of polymer-impregnated concrete (PIC) having a uniaxial compressive strength of 21,000 psi. The spherical specimens were tested under hydrostatic loading conditions of short-term, long-term, and cyclic pressure. The test results show that the PIC spheres respond to hydrostatic loading with linearly elastic behavior and that the implosion pressures are greater by approximately 40% than those for similar regular-concrete spheres. Under short-term loading the specimens having a wall-thickness-to-outside-diameter ratio of 0.063 and 0.125 (1-or 2-inch walls to 16-inch OD) implode at average hydrostatic pressures of 4,810 and 8,475 psi, respectively. Classical elastic theory predicts the strain behavior and implosion pressures of the PIC sphere within engineering accuracy.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1971
Accession Number
AD0736598

Entities

People

  • H. H. Haynes
  • N. D. Albertsen

Organizations

  • Naval Facilities Engineering Service Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Civil Engineering
  • Compressive Strength
  • Concrete
  • Construction
  • Construction Materials
  • Diameters
  • Elastic Properties
  • Engineering
  • Failure Mode And Effect Analysis
  • Hydrostatic Pressure
  • Materials
  • Mechanical Working
  • Mechanics
  • Modulus Of Elasticity
  • Physical Properties
  • Static Pressure
  • Thickness

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Pulsed Power and Plasma Physics.