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Research Papers

Background of ABS Buckling Strength Assessment Criteria for Cylindrical Shells in Offshore Structures

[+] Author and Article Information
Hai-Hong Sun, Pao-Lin Tan

 American Bureau of Shipping, 16855 Northchase Drive, Houston, TX 77060

J. Offshore Mech. Arct. Eng 130(2), 021012 (Jun 09, 2008) (4 pages) doi:10.1115/1.2913349 History: Received September 29, 2006; Revised July 17, 2007; Published June 09, 2008

Cylindrical shells, unstiffened or stiffened with rings and/or stringers, are commonly used in offshore structures as main loading-carrying members. Comprehensive theoretical work and experimental studies on the buckling behavior of cylindrical shells have been carried out in the past. The increasing offshore application of stiffened cylindrical shells has raised some new challenges that need to be addressed. This paper provides the fundamental principles and technical background of the ABS buckling strength assessment criteria for cylindrical shells applied in offshore structures. The accuracy of ABS buckling criteria for assessing the cylindrical shells is established by benchmarking the results against an extensive database of test results assembled by American Bureau of Shipping. The results are also compared against current recognized offshore standards, such as API Bulletins 2U and DnV CN30.1. It is demonstrated that the ABS criteria provide very effective and sufficiently accurate predictions for the cylindrical shell buckling calculations.

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Copyright © 2008 by American Society of Mechanical Engineers
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Figures

Grahic Jump Location
Figure 1

Comparison of plasticity reduction factors

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Figure 2

Modeling uncertainty distribution of ring stiffened cylindrical shells

Grahic Jump Location
Figure 3

Modeling uncertainty distribution of ring and stringer stiffened cylindrical shells

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