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Strength of minimum structure platforms under ship impact

Strength of minimum structure platforms under ship impact
Strength of minimum structure platforms under ship impact
This paper presents the findings of a numerical investigation into the strength of minimum structure platforms subject to a ship impact. The study has identified important design issues that should be addressed in order to improve the survivability and continued serviceability of minimum structures after a ship impact. It was found that, due to a lack of research effort, design guidelines governing ship impact on minimum structures are lacking in comparison with conventional jacket platforms. In particular, requirements governing the minimum amount of plastic energy absorption in minimum structures are not clearly defined. Ship impact analyses were therefore carried out in order to compare their structural integrity with that for a jacket under ship collision conditions and to evaluate the effects on their ultimate strength. The study not only established any degradation of,system strength, but has also determined the amount of plastic energy absorption under various impact scenarios.
0892-7219
368-375
Grewal, S.
226fc014-4b2a-4924-8885-25de1cde5bbb
Lee, M.
d04961f5-36fc-4d03-af4a-cb3047be7de1
Grewal, S.
226fc014-4b2a-4924-8885-25de1cde5bbb
Lee, M.
d04961f5-36fc-4d03-af4a-cb3047be7de1

Grewal, S. and Lee, M. (2004) Strength of minimum structure platforms under ship impact. Journal of Offshore Mechanics and Arctic Engineering, 126 (4), 368-375. (doi:10.1115/1.1839883).

Record type: Article

Abstract

This paper presents the findings of a numerical investigation into the strength of minimum structure platforms subject to a ship impact. The study has identified important design issues that should be addressed in order to improve the survivability and continued serviceability of minimum structures after a ship impact. It was found that, due to a lack of research effort, design guidelines governing ship impact on minimum structures are lacking in comparison with conventional jacket platforms. In particular, requirements governing the minimum amount of plastic energy absorption in minimum structures are not clearly defined. Ship impact analyses were therefore carried out in order to compare their structural integrity with that for a jacket under ship collision conditions and to evaluate the effects on their ultimate strength. The study not only established any degradation of,system strength, but has also determined the amount of plastic energy absorption under various impact scenarios.

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Published date: November 2004

Identifiers

Local EPrints ID: 53648
URI: http://eprints.soton.ac.uk/id/eprint/53648
ISSN: 0892-7219
PURE UUID: 4b827c8c-f5a2-4f07-be0f-ff1608c8ef16

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Date deposited: 22 Jul 2008
Last modified: 15 Mar 2024 10:41

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Contributors

Author: S. Grewal
Author: M. Lee

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