Failure Pressure Estimations for Pipes with Combined Corrosion Defects on the External Surface: A Comparative Study

Méndez, Gerardo Terán; Colindres, Selene I. Capula; Altamirano, Julio César Velázquez; Fernández-Cueto, M. J.; Angeles-Herrera, D.; Herrera-Hernández, H.

doi:10.20964/2017.11.86

Cited by 44 publications

(19 citation statements)

References 28 publications

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“…Their results illustrate that i) the failure pressure increases for higher metal grades, and ii) the relative error with the FEM simulation increases as defect depth growths, obtaining closer matching for the DNV approach. Terán et al [23] compared the ASME B31G, RSTRENG, SHELL92, DNV, PCORRC, Fitnet FFS, Choi's model and CPS criteria based on FEM simulations in an API 5L X52 steel pipe with a diameter of 609.6 mm. For this purpose, they implemented the Von Mises criterion in nine simulations with semi-elliptical pits associated with a combined metal loss: uniform (50%) and localized (50%) corrosion defects.…”

Section: Prediction Error Comparisonmentioning

confidence: 99%

“…There are other relevant approaches that were already discussed such as Choi et al [51], Ma et al [81], and Netto et al [16]. Other comparisons using FEM are summarized in [23].…”

Section: Prediction Error Comparisonmentioning

confidence: 99%

“…However, additional approaches to describe plastic deformation are also discussed. In comparison to other relevant reviews [17][18][19][20][21][22][23], this paper aims to evaluate the main available approaches concerning their level of conservatism subjected to the assumptions of each model; therefore, the models will be described in detail with a homogeneous nomenclature. The document is structured as follows: Section 2 describes an interesting yield criterion based on the longitudinal and circumferential stresses and the Von Mises criterion.…”

Section: Introductionmentioning

confidence: 99%

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Reliability assessments of corroded pipelines based on internal pressure – A review

Amaya-Gómez

Sánchez-Silva

Bastidas‐Arteaga

et al. 2019

Engineering Failure Analysis

133

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Corrosion is one of the most significant threats for onshore pipelines that may lead to a Loss of Containment (LOC). A LOC poses significant consequences over the surrounding people and environment because of the hazardousness of the transporting fluids, so different efforts have been raised to predict pipe failures, which are commonly based on reliability assessments with limit state functions. These functions are gathered in serviceability, leakage, and ultimate conditions, out of which the last two approaches contemplate a LOC. This paper reviews recognized limit state functions for corroded pipelines, and it discusses their assumptions and applicability. Specifically, this paper focuses on burst limit pressures considering the relevance in the academic literature and Oil & Gas standards. Therefore, a thorough comparison is presented based on failure criteria, acceptable defect dimensions, failure probability, and error prediction based on experimental and numerical burst tests. The objective is to evaluate the level of conservatism of each simplified model depending on the material toughness and the corrosion rate. This review aims to support a reliability model selection in corroded pipelines for future intervention strategies.

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Section: Prediction Error Comparisonmentioning

confidence: 99%

“…There are other relevant approaches that were already discussed such as Choi et al [51], Ma et al [81], and Netto et al [16]. Other comparisons using FEM are summarized in [23].…”

Section: Prediction Error Comparisonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Reliability assessments of corroded pipelines based on internal pressure – A review

Amaya-Gómez

Sánchez-Silva

Bastidas‐Arteaga

et al. 2019

Engineering Failure Analysis

133

View full text Add to dashboard Cite

show abstract

“…it was shown that numerical simulation with CDM could be used to carry on "virtual experiments" for the determination of the material fracture toughness with high degree of accuracy. Using conventional mathematical methods, B31G, RSTRENG-1, Shell-92, DNV, PCORR, and Fitnet FFS, Terán et al [6] analyzed a combined corrosion defects, which joins together a general corrosion and a pitting corrosion defects to predict the failure pressure of corroded steel pipelines. It was found that the failure pressure predictions of general corrosion combined with a pit are affected by the length and depth of two corrosion defects.…”

Section: Introductionmentioning

confidence: 99%

Behavior and damage of a pipe in the presence of a corrosion defect depth of 10% of its thickness and highlighting the weaknesses of the ASME / B31G method

Berrekia

Benzerga²,

Haddi

2019

Frattura Ed Integrità Strutturale

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The company DRC (pipe repair Department) located within the SONATRACH Company of oil and gas in Algeria, which is responsible for the repair of pipelines for the transport of gas or crude petroleum, will rehabilitate old pipes that have operated on-line for approximately 30 years or come from remaining projects. On the assumption that rehabilitating a pipeline means making it workable under the same conditions as a new structure and reducing the overall cost of the project. The abandonment of these tubes will have an important environmental and financial impact. The rehabilitation, which consists of recovering the maximum of tube, already used, therefore reduces the cost of the project. Inspection and evaluation of corrosion defects are carried out in accordance with ASME/31G method that is applied to low alloyed carbon steels with corrosion defects having soft profiles with low stress concentration. Our research will consist in developing a method using a behavior-damage coupling of the material to highlight the weaknesses of the ASME / B31G method [1] and show for defects whose depth does not exceed 10%, these defects can survive hydrostatic testing but will develop during service when the pressure is variable.

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“…The shape defects, which are characterised by large plastic deformations with (or without) reduced wall thickness, are very dangerous because they can initiate (or can be combined with) various types of corrosion defects or cracks [20][21][22][23]. Therefore, these defects should also be examined to decide whether the pipelines of this age can be safely used further, or whether these defects must be removed.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Failure Pressure for Gas Pipelines with Combined Defects

Vilkys¹,

Rudzinskas

Prentkovskis

et al. 2018

Metals

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The paper presents the study of the influence of mechanical damage on the safe operation of gas transmission pipelines. The main types of pipeline damage with the actual parameters and their influence on the operational parameters are analysed. The damaged fractures of the section of the pipeline Kaunas (Lithuania)-Kaliningrad (Russia) were investigated in the laboratory. The main operational characteristics and the structure of the pipeline's metal after the period of long-term operation were determined using various research and experimental methods. The influence of the pipeline's damage was modelled by using the Finite Element Method and the ANSYS code. The predictions of the failure pressure were made, taking into consideration the actual properties of the pipeline's metal. Techniques including the hardness and microhardness measurement, chemical analysis, the impact strength test, and metallography analysis with an optical microscope, were used in the experimental study.

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Failure Pressure Estimations for Pipes with Combined Corrosion Defects on the External Surface: A Comparative Study

Cited by 44 publications

References 28 publications

Reliability assessments of corroded pipelines based on internal pressure – A review

Reliability assessments of corroded pipelines based on internal pressure – A review

Behavior and damage of a pipe in the presence of a corrosion defect depth of 10% of its thickness and highlighting the weaknesses of the ASME / B31G method

Evaluation of Failure Pressure for Gas Pipelines with Combined Defects

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