ISUM Approach for Collapse Analysis of Double-Bottom Structures in Ships

Masahiko Fujikubo, V. Daniel Olaru, Daisuke Yanagihara, Yuu Setoyama

Research output: Contribution to conferencePaperpeer-review

10 Citations (Scopus)

Abstract

An application of ISUM to analyse collapse behaviour of large ship structural modules is developed. The system analysis of 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 Timoshenko-beam elements for the girder web plates. Fundamental collapse modes and localized failures in double-bottom structure under pressure loads are obtained in 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
Pages644-651
Number of pages8
Publication statusPublished - Dec 1 2002
Externally publishedYes
EventProceedings of the Twelfth (2002) International Offshore and Polar Engineering Conference - Kitakyushu, Japan
Duration: May 26 2002May 31 2002

Other

OtherProceedings of the Twelfth (2002) International Offshore and Polar Engineering Conference
CountryJapan
CityKitakyushu
Period5/26/025/31/02

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

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