Ship collision and grounding: Scaled experiments and numerical analysis

M. A.G. Calle*, R. E. Oshiro, M. Alves

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

31 Citations (Scopus)

Abstract

Scaled models are important in marine engineering since it is prohibitive testing of actual ship size. However, the crashworthiness analysis on marine structures in reduced scale is not an ordinary research topic given the scientific and technical limitations surrounding this type of practice. It is reported here a series of collision tests of marine structures in reduced scale. These experiments are used to validate the subsequent finite element analysis. The scaled shiplike specimens were built from metallic thin-walled structures in a reduced scale of 1:100 taken into account shipbuilding processes analogous to that used in real scale marine structures. The experiments include scaled collision tests of a T cross-section beam, head-on collision of an oil tanker against a rigid wall, ship grounding and collision between two oil tankers. It is discussed the influence of different numerical and experimental aspects inherent to experimental impact tests of marine structures. This includes the mechanical properties of the materials, slight misalignments in test arrangements, failure criteria, weld joints and sloshing effect of ship cargo. These aspects are thoroughly analyzed and discussed here so bringing new insights in the modeling of marine structures subjected to collision events using reduced scale experiments.

Original languageEnglish
Pages (from-to)195-210
Number of pages16
JournalInternational Journal of Impact Engineering
Volume103
DOIs
Publication statusPublished - 1 May 2017
MoE publication typeA1 Journal article-refereed

Keywords

  • Marine structures
  • Reduced scale
  • Ship collision
  • Ship grounding
  • Sloshing

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