EVALUATION OF THE LONGITUDINAL ULTIMATE STRENGTH OF VARIOUS SHIP HULL CONFIGURATIONS

The American Bureau of Shipping's nonlinear finite-element program USAS is used to evaluate the longitudinal ultimate strength of four ship hull configurations. Included in each analysis are the effects of buckling, post-buckling, and plasticity. The interaction of these effects and the interaction of the various structural components of the ship hull are accounted for in a unified, rigorous manner owing to the generality of the analysis method. Discussion of other, more limited, ultimate-strength analysis methods places the approach in perspective. An important aspect of this paper is an extensive treatment of the finite-element modeling procedures necessary for maintaining accuracy, yet keeping cost to a minimum. Results of a study on the sensitivity of the ultimate strength to variations in several parameters, including yield stress, thickness and magnitude of imperfections, are also presented.

• Supplemental Notes:
  • Transactions paper
• Authors:
  • Kutt, L M
  • Piaszczyk, C M
  • Chen, Yao
• Publication Date: 1985

Media Info

• Features: References;
• Pagination: 21 p.
• Serial:
  • Society of Naval Architects and Marine Engineers-Transactions
  • Volume: 93
  • Publisher: Society of Naval Architects and Marine Engineers

Subject/Index Terms

• TRT Terms: Computer programs; Finite element method; Hulls; Longitudinal strength; Strength of materials; Ultimate strength
• Old TRIS Terms: Hull strength; Usas (Computer program)
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00651454
• Record Type: Publication
• Source Agency: Maritime Technical Information Facility
• Files: TRIS
• Created Date: Jul 21 1994 12:00AM