Residual ultimate strength of hull structures with crack and corrosion damage

Gao, Dawei; Shi, Gui-jie; Wang, Deyu

doi:10.1016/j.engfailanal.2012.05.003

Cited by 26 publications

(5 citation statements)

References 12 publications

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“…Gao et al 2012).Kim et al performed a series of assessments of the effect of corrosion wastage on the ultimate strength responses of four types of oil tankers namely VLCC, Suezmax, Aframax, and Panamax(Kim et al 2012b(Kim et al , 2014aGuedes Soares and Garbatov 1999). The average general corrosion thickness degradation model and real corrosion model are expropriated to assess the influence of corrosion on the ultimate bending moment of two box girders(Saad-Eldeen et al 2013).…”

mentioning

confidence: 99%

Hull Girder Ultimate Strength Assessment Considering Local Corrosion

Van

Dong

2020

J. Marine. Sci. Appl.

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The residual strength capacity of ship hull with full corrosion appearance in every structural member has been considered in a large number of research works; however, the influence of local corrosion on the ultimate strength and cross-section properties has not been taken into account and analyzed. Hence, this study aims to assess the effect of corrosion appearance in the flange section and web section on the ultimate vertical bending moment and several cross-section properties of a bulk carrier. To perform this task, a probabilistic corrosion rate estimation model and the common structural rule model are introduced and employed. The incremental-iterative method given by the International Association of Classification Societies-Common Structural Rules (IACS-CSR) is applied to determine the ultimate vertical bending moment, neutral axis position at the limit state, and other properties of the cross-section. The calculation results and discussions relative to the effect of corrosion on ship hull are presented.

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mentioning

confidence: 99%

Hull Girder Ultimate Strength Assessment Considering Local Corrosion

Van

Dong

2020

J. Marine. Sci. Appl.

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“…Hull ultimate strength analysis involves material nonlinearity and large deformation nonlinearity. NFEM can be used to accurately evaluate the effects of various factors on ultimate strength, which are mainly including model longitudinal scope, element type, mesh size, material constitutive model, boundary condition, initial deformation, weld residual stress, lateral pressure, and plastic buckling [25]. Boundary conditions in NFEM in NFEM are given in Table 3.…”

Section: Ultimate Strength Analysis Of Hull Girdermentioning

confidence: 99%

“…The NFEM listed in previous paper [25], including element type, meshing density, model extent, and calculation method, is also used here to calculate the ultimate strength of hull girder. Then the effect of initial deformation on ultimate strength is analyzed.…”

Section: Effect Of Initial Deformation On Ultimate Strengthmentioning

confidence: 99%

Analysis of Hull Girder Ultimate Strength and Residual Strength Based on IACS CSR‐H

Shi

Gao

Zhou

2019

Mathematical Problems in Engineering

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In order to express the safety level of hull structures, IACS Common Structure Rules of Bulk Carriers and Oil Tankers (CSR-H) makes new requirements of hull girder ultimate strength. Compared with original CSR (i.e., CSR-OT and CSR-BC), partial safety factors of hull girder ultimate strength in CSR-H have been partly modified, and new requirements of residual strength have been added in the rules for hull safety after grounded/collided damage. This paper compares the rule requirements of ultimate strength in CSR-H and CSR-OT/CSR-BC and explains the technical background of rule requirements. The hull girder ultimate strength is mainly analyzed by SMITH method in rule requirements due to fast and stable calculation results. This paper also uses nonlinear finite element method (NFEM) to explain the critical influence factors for hull girder ultimate strength implied in the rule requirements. Based on 5 typical Bulk Carriers and 4 typical Oil Tankers, the influence of hull girder ultimate strength and residual strength in CSR-H has been evaluated for ship building industry. The actual ship evaluation results can be used to instruct the new CSR-H ship design.

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“…Crack is one of the most common damage in aged marine structures, which may be initiated at structural discontinuity, welded joints and stress concentration regions (He et al, 2014(He et al, , 2020. It is common sense that cracks could significantly worsen the buckling performance, consequently reduce the load bearing capacity of structures, possibly causing a catastrophic collapse of the whole structure (Wang et al, 2015;Gao et al, 2012;Xia et al, 2019). Therefore, it is crucial to predict the ultimate strength of hull structures based on deterministic methods when they come across extraordinary terrible loading conditions.…”

Section: Introductionmentioning

confidence: 99%

Probabilistic residual ultimate strength assessment of cracked unstiffened and stiffened plates under uniaxial compression

Cui

et al. 2020

Ocean Engineering

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Residual ultimate strength of hull structures with crack and corrosion damage

Cited by 26 publications

References 12 publications

Hull Girder Ultimate Strength Assessment Considering Local Corrosion

Hull Girder Ultimate Strength Assessment Considering Local Corrosion

Analysis of Hull Girder Ultimate Strength and Residual Strength Based on IACS CSR‐H

Probabilistic residual ultimate strength assessment of cracked unstiffened and stiffened plates under uniaxial compression

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