Uncertainty in corrosion wastage prediction of oil tankers

Jurišić, Paul; Parunov, Joško; Žiha, Kalman

doi:10.1201/b11810-62

Cited by 2 publications

(8 citation statements)

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“…The parameters used in the crack propagation assessment are those indicated in Table 4, except that the crack growth parameter C is taken as 9.49•10 -12 , as recommended by Lassen and Recko [26] for mean plus two standard deviations. This is consistent with the fact that in the S-N approach, the design S-N curves specified in CSR are used, rather than the mean S-N curves [20].…”

Section: Comparative Analysissupporting

confidence: 75%

“…The initial crack size and the interaction coefficient are assumed according to Almar-Naess [23] and Lassen and Recko [26]. The vertical wave induced bending moments as well as the shape parameter ξ of the Weibull distribution are taken from IACS [20]. Applying Eq.…”

Section: Case Studymentioning

confidence: 99%

“…The S-N approach used in the present study has been defined based on IACS [20] for the F-class of S-N curve.…”

Section: Comparative Analysismentioning

confidence: 99%

“…System reliability approach of ship hull structures under corrosion and fatigue is proposed in [18] and [19]. An evidence of the importance of fatigue for global ship strength is the "fatigue section modulus", newly introduced into Common Structural Rules for Double-hull Oil Tankers, which is a simplified fatigue control measure against the fatigue hull girder stresses in the longitudinal deck structure [20].…”

Section: Introductionmentioning

confidence: 99%

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Fatigue Assessment of Corroded Deck Longitudinals of Tankers

Parunov

Gledić

Garbatov³

et al. 2021

IJME

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Fatigue life of deck longitudinals of oil tankers is analysed based on linear elastic fracture mechanics. A parametric formulation for the estimation of stress intensity factors and the Paris-Erdogan law are applied. Long-term effects of corrosion are modelled based on regression equations fitted to thickness measurements made during inspections of two tankers. Parametric studies are performed in order to investigate the importance of the governing parameters of crack propagation. A comparison of the fatigue analyses performed by linear fracture mechanics and S-N approaches is presented.

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Section: Comparative Analysissupporting

confidence: 75%

Section: Case Studymentioning

confidence: 99%

“…The S-N approach used in the present study has been defined based on IACS [20] for the F-class of S-N curve.…”

Section: Comparative Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fatigue Assessment of Corroded Deck Longitudinals of Tankers

Parunov

Gledić

Garbatov³

et al. 2021

IJME

Self Cite

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“…The Weibull distribution has been proven to be the most suitable for representing the variability corrosion wastage at any ship age [14], [15]. Figure 3, represents corrosion wastage of the deck plates in the cargo tanks at year 15 for one of the oil tankers from the CRS corrosion database.…”

Section: Variability Of the Corrosion Wastagementioning

confidence: 99%

Aging Effects on Ship Structural Integrity

Jurišić¹,

Parunov

Garbatov

2017

Brod

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SummaryThe most important degradation effects of ship structures are corrosion and fatigue cracks. Both of these aging effects have clear consequences of increasing the level of stresses and degrading the strength of ship structures for almost all relevant failure modes. This study presents an overview of some recent developments on the aging effects on the ship structural integrity. The analysis of the thickness measurements has been undertaken to improve understanding of the corrosion degradation phenomena and to develop prediction models of aging effects suitable for practical applications in the ship structural design and analysis. The study also deals with the application of the non-linear finite element analysis as a suitable tool for a collapse assessment of uniaxially loaded plates and stiffened panels of ship structures weakened by non-uniform corrosion degradation and fatigue cracks. Experimental studies have also been reviewed to better understand the recently found degradation of mechanical properties of corroded steel, while theoretical calculations have been performed to evaluate consequences of such degradation on the ship structural integrity.

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Uncertainty in corrosion wastage prediction of oil tankers

Cited by 2 publications

References 0 publications

Fatigue Assessment of Corroded Deck Longitudinals of Tankers

Fatigue Assessment of Corroded Deck Longitudinals of Tankers

Aging Effects on Ship Structural Integrity

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