BUCKLING DESIGN IN SHIP STRUCTURES

The normal ship structures are heavily stiffened plate panels of traditional configurations. Even with these traditional structures several aspects of the buckling behavior are not sufficiently well known to satisfy the designers completely. The present developments of LNG- carriers with very thin shell of revolution type tanks have necessitated development of buckling design criteria both for unstiffened spherical shells and for lightly stiffened cylinders. The importance of the relationship between shape imperfection and reduction (knock down) factor is for both types of shells rather obvious. For circular cylinders even light stiffening gives large increases in the theoretical buckling strength. The extent to which this constitutes a real increase is an important factor for the designer. Typical for the cylinders is also that they operate in the elasto-plastic region. The main purpose of the paper has been to point out, rather than to attempt to solve some of the still unanswered, or only partially answered questions related to the design against buckling of marine structures.

• Corporate Authors:

  Norske Veritas

  Grenseveien 92, Etterstadd
  Oslo 6,   Norway 
• Authors:
  • Roren, EMQ
  • Hansen, H R
• Publication Date: 1975-8

Media Info

• Features: References;
• Pagination: 13 p.
• Serial:
  • Norske Veritas
  • Issue Number: 89

Subject/Index Terms

• TRT Terms: Buckling; Cylindrical bodies; Elastoplasticity
• Old TRIS Terms: Stiffened cylinders
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00130881
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Apr 7 1976 12:00AM