Effect of Damage on Composite Cylinders Subjected to External Pressure

ABOUT THE INTERNATIONAL CONCRETE ABSTRACTS PORTAL

  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal

  


Title: Effect of Damage on Composite Cylinders Subjected to External Pressure

Author(s): C. Douglas Goode and Mohie El-Din Shukry

Publication: Structural Journal

Volume: 85

Issue: 4

Appears on pages(s): 405-413

Keywords: composite construction (concrete and steel); cylinders; damage; offshore structures; pressure; sandwich structures; structural design; tests; underwater structures; Structural Research

Date: 7/1/1988

Abstract:
Paper describes the effect of damage, in the form of dents and holes, on the behavior and strength of composite (steel-concrete-steel) cylinders when subjected to external pressure. The depth of dent was the main parameter; two thicknesses of steel skin were used, and in ten of the twenty tests, the filler material was a lightweight-aggregate concrete. The results are compared with theory and clearly show the integrity and lack of sensitivity to initial imperfections of this form of construction. Dents up to 1/8 of the wall thickness, giving an out-of-roundness of 1.5 percent of the inner radius, had no significant effect on the behavior. The presence of holes in the outer skin did not affect the cylinder's performance.