<abstract xmlns="http://www.w3.org/1999/xhtml"><p>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.</p></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.

Structural Reliability Assessment of Corroded Tanker Ship Based on Experimentally Estimated Ultimate Strength

Faculty of Ocean Engineering and Ship Technology

Centre for Marine Technology and Engineering (CENTEC), Instituto Superior Técnico

Polish Maritime Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

This work deals with the reliability assessment of a tanker ship hull structure subjected to a vertical bending moment and corrosion degradation. The...

Structural Reliability Assessment of Corroded Tanker Ship Based on Experimentally Estimated Ultimate Strength

Publié en ligne: 12 juil. 2019

Pages: 47 - 54

DOI: https://doi.org/10.2478/pomr-2019-0024

Mots clés
ship structures, reliability assessment, corrosion, ultimate strength, tanker ship

© 2019 Krzysztof Woloszyk et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Structural Reliability Assessment of Corroded Tanker Ship Based on Experimentally Estimated Ultimate Strength

Publié en ligne: 12 juil. 2019

Pages: 47 - 54

DOI: https://doi.org/10.2478/pomr-2019-0024

Mots clésship structures, reliability assessment, corrosion, ultimate strength, tanker ship

© 2019 Krzysztof Woloszyk et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mots clés
ship structures, reliability assessment, corrosion, ultimate strength, tanker ship