Numerical Failure Analysis of Corroded Pipeline Elbow with Longitudinally Aligned Interacting Corrosion Defects

Arumugam, Thibankumar; Karuppanan, Saravanan; Ovinis, Mark

doi:10.1007/978-981-19-1939-8_67

Cited by 3 publications

(2 citation statements)

References 21 publications

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“…The ability to use FEM to perform parametric studies by varying geometric data also allows the development of new corrosion assessment guidelines. However, as [12,13] have mentioned, due to the sheer complexity generated by real-life corrosion problems, the accuracy of the results obtained using FEM heavily depends on the model characteristics, material behavior, and boundary conditions of the model. Since simulating pitting can take hours or even days to yield results, an efficient FEM must be simulated to save time and increase research productivity [14,15,16].…”

Section: Validation Of the Finite Element Modelmentioning

confidence: 99%

Behavior of Corroded Aboveground Pipes Subjected to Internal Pressure

Radermacher,

Rădeanu,

Călcâi

2023

Mining Revue

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Corrosion is accountable for numerous malfunctions and leakages in gas pipelines. In instances of external corrosion, due to the internal pressure within the pipes, stress concentrations can occur around the corroded areas. These, in the presence of cavities or cracks resulting from corrosion, may amplify the risk of pipeline failure. Consequently, as the wall thickness diminishes due to corrosion, the pipeline’s ability to withstand internal pressure declines. In the case of corrosion, the pressure at which a corroded pipe might collapse is significantly lower than that of an uncorroded one. Finite element modeling of corroded pipes with a defect is conducted using the Abaqus software, taking into account the mechanical effects of internal pressure on the gas pipeline structure. Abaqus facilitates the simulation of internal pressure and predicts the behavior of the pipe under pressure conditions.

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Section: Validation Of the Finite Element Modelmentioning

confidence: 99%

Behavior of Corroded Aboveground Pipes Subjected to Internal Pressure

Radermacher,

Rădeanu,

Călcâi

2023

Mining Revue

View full text Add to dashboard Cite

show abstract

“…The capacity of FEM to orchestrate parametric investigations by modulation of geometric parameters augments its utility in sculpting novel paradigms for discerning the ramifications of corrosive events. Nevertheless, as underscored by references [12,13], the veracity of the outcomes derived from FEM is intricately interwoven with model typologies, the intrinsic behaviours of materials, and the demarcated boundary stipulations of the model. The endeavour to emulate pitting occurrences can be temporally exhaustive, potentially spanning extensive hours or even days to yield conclusive insights.…”

Section: Validation Of the Finite Element Analytical Modelmentioning

confidence: 99%

Analytical Examination of Deformational Dynamics in Above-Ground Pipelines Compromised by Corrosion Under the Influence of Internal Pressurization

Radermacher,

Rădeanu,

Călcîi

2023

Mining Revue

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Corrosion is a major factor responsible for failures and leaks in gas pipelines. In the context of external corrosion, the internal pressure within pipes can create stress and strain concentrations in the area affected by corrosion. These phenomena, combined with the presence of cavities or cracks resulting from the corrosion process, amplify the risk of pipeline failure. As corrosion reduces the wall thickness of the pipe, its ability to withstand internal pressures decreases significantly. Consequently, a pipe affected by corrosion may collapse at a much lower pressure compared to a pipe that has not been subjected to corrosion. With a view to analyse and anticipate the behaviour of corroded pipes, finite element modelling is used, implemented through the Abaqus software. This tool allows for simulating the mechanical effects of internal pressure on the gas pipeline structure, thereby providing the ability to predict the pipeline's behaviour under various pressure conditions. This approach aids in identifying and assessing risks associated with corrosion, facilitating the implementation of suitable preventive and maintenance measures to ensure the integrity and functionality of gas pipelines.

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