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Computational models for the structural crashworthiness analysis of a fixed-type offshore platform in collisions with an offshore supply vessel

Mujeeb-Ahmed, MP; Ince, ST; Paik, JK; (2020) Computational models for the structural crashworthiness analysis of a fixed-type offshore platform in collisions with an offshore supply vessel. Thin-Walled Structures , 154 , Article 106868. 10.1016/j.tws.2020.106868. Green open access

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Abstract

The aim of this paper was to develop practical modelling techniques for the structural crashworthiness analysis in collisions between a fixed-type offshore platform and an offshore supply vessel (OSV). The computational models used nonlinear finite element method involving large deformations (strains) of both vessel and offshore platform, dynamic effects of material (e.g., strain rate and dynamic fracture strain), and the influence of surrounding waters. The applicability of the modelling techniques was demonstrated with an applied example to collisions between an OSV and a jacket-type offshore platform, where a sensitivity analysis was carried out for different collision parameters (e.g., collision velocities and impact locations). It is concluded that the computational models can ultimately be employed for quantitative risk assessment of fixed-type offshore structures collided with an OSV, which requires to perform the structural crashworthiness analysis.

Type: Article
Title: Computational models for the structural crashworthiness analysis of a fixed-type offshore platform in collisions with an offshore supply vessel
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.tws.2020.106868
Publisher version: http://dx.doi.org/10.1016/j.tws.2020.106868
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Fixed-type offshore structures, Offshore supply vessel, Collisions, Structural crashworthiness, Jacket-type offshore platform, Nonlinear finite element method (NLFEM), Quantitative collision risk assessment and management
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/10100198
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