Fatigue realibility and maintainability of marine structures

Wirsching, Paul H.; Torng, T. Y.; Geyer, J.F.; Stahl, Bernhard

doi:10.1016/0951-8339(90)90012-g

Cited by 21 publications

(5 citation statements)

References 3 publications

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“…In the case of maritime transport equipment, inspection and maintenance are performed traditionally on a periodic basis instead of conditional basis. Since maintenance contributes to the life cost of the structure considerably, a rational maintenance strategy needs be established based on structural reliability analyses in order to reduce associated cost but maintain sufficient structural safety [14].…”

Section: Maintenance Decision Makingmentioning

confidence: 99%

Structural Integrity Assessment of Maritime Transport Equipment

Jiang

2018

Volume 11B: Honoring Symposium for Professor Carlos Guedes Soares on Marine Technology and Ocean Engineering

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Structural integrity assessment is the study of the safe design and assessment of components and structures under loads, and has become increasingly important in engineering design. The technology and applications of structural integrity widely range from transportation, oil and gas, power generation to petrochemical, nuclear sectors, etc. In this paper, the character of structural integrity assessment in the maritime field is discussed, the latest approach and techniques are classified in three sub-topics, damage diagnosis, damage prognosis & maintenance strategy and then illustrated using a few practical studies. Finally, the future challenges introduced by new material, new exploitation field and new technology, i.e., IOT, big data, etc., are discussed and the potential development of structural integrity assessment in maritime industry is explored.

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Section: Maintenance Decision Makingmentioning

confidence: 99%

Structural Integrity Assessment of Maritime Transport Equipment

Jiang

2018

Volume 11B: Honoring Symposium for Professor Carlos Guedes Soares on Marine Technology and Ocean Engineering

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“…The calculation scheme for a full stochastic simulation is shown in Figure 7.18 (see Ref [7]). The crack growth is now random according to experimental measurements and fracture mechanics modeling.…”

Section: Full Stochastic Simulationmentioning

confidence: 99%

“…The crack depths in the left column correspond to the chosen crack depths d k in equations (7.65) and (7.66).The model will be able to simulate the fatigue crack initiation and growth in fillet-welded joints under CA loading in laboratory conditions where the observed scatter is dominated by variability in the local toe geometry, surface condition at the fusion line, and heterogeneities of the HAZ. This is because the experimental crack growth does not exhibit fully Markovian behavior; for details see Refs [7,9]. This is because the experimental crack growth does not exhibit fully Markovian behavior; for details see Refs [7,9].…”

Section: Determination Of Parameters In the Markov Modelmentioning

confidence: 99%

Stochastic Modeling

and¹,

Récho²

2006

Fatigue Life Analyses of Welded Structures

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“…Fatigue reliability analysis can be conducted by either the S-N curve based approach or the fracture mechanics based approach. The S-N curve based approach is both efficient and involves fewer variables, in addition it is also better developed ( [18], [29], [30], [31]).…”

Section: Fatigue Reliability Analysismentioning

confidence: 99%

Structural Reliability Applications in Developing Risk-Based Inspection Plans for a Floating Production Installation

Serratella

Basu³

et al. 2004

23rd International Conference on Offshore Mechanics and Arctic Engineering, Volume 2

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This paper outlines the essential steps taken in performing structural reliability calculations during the process of laying out a risk-based inspection program. The structural reliability analysis described in this paper essentially takes the deterministic finite element method (FEM) stress/fatigue analysis results, coupled with uncertain degradation mechanisms (e.g. corrosion rate, crack propagating parameters, etc.), and tracks the time-varying structural reliability index of the structural components under consideration. This can then be used to determine the timing for inspection of structural components. For the assessment of structural strength, an efficient and straightforward method is proposed to calculate the time-variant reliability index. This method is verified by an example problem and compared to the random process first-passage reliability solutions. Load combination issue is briefly discussed, in which an approach stems from the ABS Dynamic Loading Approach (DLA) coupled with concepts from Turkstra’s rule. This proposed simplistic load combination approach is verified through an example problem in which the result is compared to the solution calculated from a more sophisticated approach. Establishment of target reliability levels is also briefly discussed. For the assessment of fatigue behavior for welded connections, both S-N curve based and fracture mechanics based reliability methods are discussed. Their usefulness will be discussed in terms of both inspection interval as well as selecting the proper sampling percentage of connections to inspect. Statistical correlation among a group of similar connections is discussed to assist the selection of appropriate locations in the population of the aforementioned sampling. The usefulness of fatigue reliability analysis is also demonstrated by an example problem.

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Fatigue realibility and maintainability of marine structures

Cited by 21 publications

References 3 publications

Structural Integrity Assessment of Maritime Transport Equipment

Structural Integrity Assessment of Maritime Transport Equipment

Stochastic Modeling

Structural Reliability Applications in Developing Risk-Based Inspection Plans for a Floating Production Installation

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