APPLICATION OF STRENGTH RESEARCH TO SHIP DESIGN

The aim of this paper is to reconsider how the comparison between structural response and structural strength is made within the rational design appraisal and plan approval procedures currently adopted in naval architecture. The design philosophy is considered and problems in assessing local strength outlined, notably those occurring during the stress analysis phase and the specification of the design criteria phase. Where a strength analysis is to be considered as the design criteria, then the effects of initial imperfections and material variability are important and need to be included. The comparison between the working stress and structural strength should then be based on a statistical assessment as used in reliability analysis. A pilot study for reliability assessment has been carried out to determine the problems in implementing such a system. The results of this study and the subsequent application to a stiffened plate arrangement typical of a ship's deck structure are discussed. From these results, the limitations of present knowledge regarding statistical analysis and strength analysis are indicated, and areas for further research identified. Order from: BSRA as No. 47,111.

• Corporate Authors:

  Int'l Conference on Steel Plated Structures

  London,   England 
• Authors:
  • Goodman, R A
  • Mowatt, G A
• Publication Date: 1976

Media Info

• Features: References;
• Pagination: 37 p.

Subject/Index Terms

• TRT Terms: Design; Reliability; Ships; Strength of materials; Structural analysis; Structural mechanics; Vehicle design
• Uncontrolled Terms: Design criteria; Ship design; Structural reliability; Structural response
• Old TRIS Terms: Strength analysis
• Subject Areas: Design; Marine Transportation; Materials; Vehicles and Equipment;

Filing Info

• Accession Number: 00168332
• Record Type: Publication
• Source Agency: British Ship Research Association
• Report/Paper Numbers: Proceeding
• Files: TRIS
• Created Date: Feb 16 1978 12:00AM