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Structural Reliability Assessment Of Corroded Tanker Ship Based On Experimentally Estimated Ultimate Strength

Abstract

This work deals with the reliability assessment of a tanker ship hull structure subjected to a vertical bending moment and corrosion degradation. The progressive collapse and ultimate load carrying capacity are estimated based on experimentally tested scaled box-shaped-specimens. The translation of the strength estimate of the scaled specimen to the real tanker ship hull structure is performed based on the dimensional theory developing a step-wise linear stress-strain relationship. The load-carrying capacity is considered as a stochastic variable, and the uncertainties resulted from the scaled-specimen to the real-structure strength translation, and the subjected load of the real ship are also accounted for. A sensitivity analysis concerning the stochastic variables, included in the ultimate limit state function is performed. The partial safety factors, in the case of a scaled specimen and real structure, are also identified, and conclusions are derived.

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Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
Polish Maritime Research no. 26, pages 47 - 54,
ISSN: 1233-2585
Language:
English
Publication year:
2019
Bibliographic description:
Wołoszyk K., Garbatov Y.: Structural Reliability Assessment Of Corroded Tanker Ship Based On Experimentally Estimated Ultimate Strength// Polish Maritime Research. -Vol. 26, iss. 2 (2019), s.47-54
DOI:
Digital Object Identifier (open in new tab) 10.2478/pomr-2019-0024
Verified by:
Gdańsk University of Technology

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