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  4. Hull girder ultimate strength of bulk carrier (HGUS-BC) evaluation: structural performances subjected to true inclination conditions of stiffened panel members
 
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Hull girder ultimate strength of bulk carrier (HGUS-BC) evaluation: structural performances subjected to true inclination conditions of stiffened panel members

Citation Link: https://doi.org/10.15480/882.5099
Publikationstyp
Journal Article
Date Issued
2023-04-11
Sprache
English
Author(s)
Faqih, Imaduddin  
Adiputra, Ristiyanto  
Prabowo, Aditya Rio  
Muhayat, Nurul  
Ehlers, Sören  
Braun, Moritz  orcid-logo
Institut
Konstruktion und Festigkeit von Schiffen M-10  
TORE-DOI
10.15480/882.5099
TORE-URI
http://hdl.handle.net/11420/15268
Journal
Results in engineering  
Volume
18
Article Number
101076
Citation
Results in Engineering 18: 101076 (2023-04-11)
Publisher DOI
10.1016/j.rineng.2023.101076
Scopus ID
2-s2.0-85152396005
Publisher
Elsevier
Peer Reviewed
true
To enhance the safety of ship structure design, this study evaluated time-dependent hull girder ultimate strength considering thick corrosion and the inclination conditions of stiffened panels. The hull girder ultimate strength was calculated using incremental–iterative methods based on IACS-CSR in a bulk carrier hull model. The corrosion effect was measured as the thickness reduction in structural members, and inclination conditions were considered such as non-uniform uniaxial thrust, which influences the yield strength of structural members. The corrosion effect was investigated from 5 to 20 years of service time, wherein the corrosion rate was obtained based on a reference and was then divided into standard and severe corrosion rate conditions. The effect of non-uniform uniaxial thrust was considered the yield stress reduction on all the stiffener elements in an inclined position. The safety level of the design within each timeframe of the measured corrosion effect was then considered based on the ultimate limit state. This study found that the corrosion rate greatly affects HGUS, with severe corrosion having a greater affect than standard corrosion. In 20 years of service time with uniform loads in hogging conditions, the highest HGUS reduction caused by standard corrosion is 5.87%, while severe corrosion causes a reduction of 24.48%. Moreover, non-uniform uniaxial thrust was found to have a negative effect on HGUS, lowering the HGUS value on benchmark hull models both in hogging and sagging conditions.
Subjects
Bulk carrier
Corrosion
Hull girder ultimate strength
IACS-BC
Ultimate limit state
DDC Class
600: Technik
Publication version
publishedVersion
Lizenz
https://creativecommons.org/licenses/by/4.0/
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