ISUM approach for collapse analysis of double-bottom structures in ships

Masahiko Fujikubo, Daisuke Yanagihara, Yuu Setoyama, Daniel Virgil Olaru

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

An application of ISUM to analyse the collapse behaviour of large ship structural modules is developed. The system analysis of a double-bottom structure as well as isolated floor and girder models is achieved with models consisting of large plate elements and beam-column elements for the inner and outer bottom plating and of Timoshenko beam elements for the girder web plates. Fundamental collapse modes and localized failures in a double-bottom structure under pressure loads are obtained in a very short time compared to FEM. Local collapse of rectangular plate panels under transverse thrust rapidly spreads from the central area of the double-bottom towards the sides and stool supports, but the structure exhibits considerable reserve strength in the overall bending.

Original languageEnglish
Pages (from-to)224-231
Number of pages8
JournalInternational Journal of Offshore and Polar Engineering
Volume13
Issue number3
Publication statusPublished - Sep 2003
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Ocean Engineering
  • Mechanical Engineering

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