Modelling the stability of iron ore bulk cargoes during marine transport

Wei Chen*, Alan Roberts, Andre Katterfeld, Craig Wheeler

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

The safe maritime transport of bulk commodities, such as iron ore, by large bulk carriers is vitally dependent on the stability of the cargo. During transport there is a propensity that cargo shift may be triggered under the vessel's rolling motion. The study presented in this paper aims to model the critical stress conditions within iron ore bulk cargoes from a bulk solids flow perspective, from which the maximum roll angle of the vessel prior to cargo slip can be predicted. Comparison of the new theoretical approach to the classic slope stability model was conducted with similar results achieved. The influence of the failed material mass after the cargo slip event on the overall cargo stability is then examined using the discrete element method. The new theoretical and numerical approaches provide a means to predict the stability and evaluate the potential safety hazards during maritime transport of iron ore bulk cargoes.

Original languageEnglish
Pages (from-to)255-264
Number of pages10
JournalPowder Technology
Volume326
DOIs
Publication statusPublished - 15 Feb 2018
Externally publishedYes

Keywords

  • Bulk solids
  • Cargo slip
  • Cargo stability
  • Discrete element modelling
  • Iron ore

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