Stochastic Characterisation of Ship Hull Damage in Collisions

Abayomi Obisesan, Srinivas Sriramula, John Harrigan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents the probabilistic characterisation of basic variables of ship structures and their application in characterising ship hull response during collisions. 83 dog-bone samples from mild steel are tested until fracture by axial displacement and basic strength variable data are collected from their resulting stress-strain relations. The data are fitted with suitable probability density functions (PDFs), with the two best PDFs identified from Goodness-of-Fit (GoF) test results. In order to analyse response variability from ship hull collisions, indentation tests are done on six hull plate models by penetrating them with two bulbous bow models. A sampling technique is then used to select probable input design sets from the probabilistic characteristics derived for basic variables. These design sets are propagated through an automated nonlinear finite element (FE) simulation of the hull plate indentation to characterise hull plate response at the onset of rupture.
Original languageEnglish
Title of host publicationProceedings of the ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering OMAE2016
Subtitle of host publicationVolume 3: Structures, Safety and Reliability
PublisherASME
Number of pages10
ISBN (Print)978-079184994-1
DOIs
Publication statusPublished - 2016
EventASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering - Busan, Korea, Democratic People's Republic of
Duration: 19 Jun 201624 Jun 2016

Conference

ConferenceASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering
CountryKorea, Democratic People's Republic of
CityBusan
Period19/06/1624/06/16

Keywords

  • collisions (physics)
  • ships
  • hull
  • damage

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  • Cite this

    Obisesan, A., Sriramula, S., & Harrigan, J. (2016). Stochastic Characterisation of Ship Hull Damage in Collisions. In Proceedings of the ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering OMAE2016: Volume 3: Structures, Safety and Reliability [OMAE2016-54301/V003T02A046] ASME. https://doi.org/10.1115/OMAE2016-54301