Interaction of corrosion defects in pipelines – Part 2: MTI JIP database of corroded pipe tests

Benjamin, Adilson C.; Freire, Julliana Cariry Palhano; Vieira, Robson D.; Cunha, Divino J. S.

doi:10.1016/j.ijpvp.2016.06.006

Cited by 57 publications

(6 citation statements)

References 1 publication

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“…(2) Corrosion cluster composed of multiple interacting defects 15 sets of data about full-scale burst test of pipeline with multiple interacting defects conducted by PETROBRAS R&D Center were collected to validate the failure position of corroded pipelines (Benjamin et al, 2016a(Benjamin et al, , 2016b. The failure model are as shown in Table 7.…”

Section: Failure Location Of Pipeline With Interacting Defects Of Dif...mentioning

confidence: 99%

“…PETROBRAS has conducted burst tests on adjacent defects with the same size (Benjamin et al, 2005; and different size (Benjamin et al, 2016a(Benjamin et al, , 2016b, providing data for failure pressure assessment and finite element verification of pipelines with interacting defects. Chouchaoui and Pick (Chouchaoui andPick, 1994, 1996) and Sun and Cheng Cheng, 2019a, 2019b) analyzed the corrosion cluster with different arrangement.…”

Section: Introductionmentioning

confidence: 99%

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Study on evaluation method of failure pressure for corrosion cluster defects based on failure location

Sun

Chen

Wang

et al. 2023

Preprint

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The interaction between adjacent defects significantly influences the internal pressure bearing capacity of corroded pipelines. Therefore, the interaction between adjacent defects must be considered as evaluating the failurepressure of pipeline with corrosion cluster defects. The existing failure pressure evaluation methods of pipeline with corrosion cluster defects have the disadvantages of complex evaluation steps and poor applicability. In the paper, the failure mode of pipeline with corrosion cluster of two or more defects is studied by burst experiment of full-scale pipeline. The results show that for the corrosion clustercomposed of defects with obvious difference in internal pressure bearing capacity, the failure position is the defect with the minimum internal pressure bearing capacity; for the corrosion cluster composed of defects with no noticeable difference in internal pressure bearing capacity, the failure location is the defect in the center of the range of corrosion cluster. Based on the failure position of corrosion cluster, a "center failure location" method is proposed to evaluate the failure pressure of corrosion cluster defects. The method takes the defect in the failure position as the center, the influence of adjacent defects which interact with the central defect on its failure pressure is considered, and then the failure pressure of pipeline with corrosion cluster defects centered on the failure location is evaluated. Compared with the existing evaluation methods, the prediction error of this method is not reduced, but the evaluation conditions are less and the evaluation method is simple to operate and more applicable.

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Section: Failure Location Of Pipeline With Interacting Defects Of Dif...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on evaluation method of failure pressure for corrosion cluster defects based on failure location

Sun

Chen

Wang

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…PETROBRAS has conducted burst tests on adjacent defects with the same size [20,21] and different sizes [22,23], providing valuable data for the assessment of failure pressure and the finite element verification of pipelines with interacting defects. FE models of tubular X-joints were analyzed by Nassiraei, Hossein and Zhu, and Lei et al [24], and a theoretical method was proposed to predict the ultimate capacity of X-connections.…”

Section: Introductionmentioning

confidence: 99%

Study on Assessment Method of Failure Pressure for Pipelines with Colony Corrosion Defects Based on Failure Location

Zhang,

Sun,

Zhang

et al. 2023

Processes

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Evaluating the burst pressure of corrosion cluster defects necessitates considering the interaction of contiguous defects. The importance of this interaction cannot be emphasized enough, as it plays a crucial role in determining the failure pressure of such pipelines. Current methods for assessing the failure pressure of corrosion cluster defects have drawbacks, including complex evaluation procedures and limited applicability. In this research, the failure mode and location of corrosion clusters with two or more defects are studied with a burst experiment on a full-scaled pipeline. Based on the failure position of the corrosion cluster, a “center failure location” method is proposed to estimate the burst pressure of colony corrosion defects. The method takes the defect in the failure position as the center; the influence of contiguous defects that interact with the central defect on its failure pressure is considered, and subsequently, the burst pressure of colony corrosion centered on the failure location is evaluated. In contrast with the current assessment methods, while the proposed approach does not reduce prediction errors, it requires fewer evaluation conditions and is operationally simpler and more versatile.

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“…There are a number of papers investigating pipelines with interacting corrosion defects. Benjamin et al [ 13 , 14 ] presented a detailed literature review of pipelines with interacting corrosion defects and a database of corroded pipe tests. Amandi et al [ 15 ] proposed a finite element model combined with a curve fitting method to estimate the remaining strength of pipelines with interacting corrosion defects.…”

Section: Introductionmentioning

confidence: 99%

A Crack Propagation Method for Pipelines with Interacting Corrosion and Crack Defects

Xie

Wang

Xiong³

et al. 2022

Sensors

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Corrosion and crack defects often exist at the same time in pipelines. The interaction impact between these defects could potentially affect the growth of the fatigue crack. In this paper, a crack propagation method is proposed for pipelines with interacting corrosion and crack defects. The finite element models are built to obtain the Stress Intensity Factors (SIFs) for fatigue crack. SIF interaction impact ratio is introduced to describe the interaction effect of corrosion on fatigue crack. Two approaches based on extreme gradient boosting (XGBoost) are proposed in this paper to predict the SIF interaction impact ratio at the deepest point of the crack defect for pipelines with interacting corrosion and crack defects. Crack size, corrosion size and the axial distance between these two defects are the factors that have an impact on the growth of the fatigue crack, and so they are considered as the input of XGBoost models. Based on the synthetic samples from finite element modeling, it has been proved that the proposed approaches can effectively predict the SIF interaction impact ratio with relatively high accuracy. The crack propagation models are built based on the proposed XGBoost models, Paris’ law and corrosion growth model. Sensitivity analyses regarding corrosion initial depth and axial distance between defects are performed. The proposed method can support pipeline integrity management by linking the crack propagation model with corrosion size, crack size and the axial distance. The problem of how the interaction between corrosion and crack defects impacts crack defect growth is investigated.

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Interaction of corrosion defects in pipelines – Part 2: MTI JIP database of corroded pipe tests

Cited by 57 publications

References 1 publication

Study on evaluation method of failure pressure for corrosion cluster defects based on failure location

Study on evaluation method of failure pressure for corrosion cluster defects based on failure location

Study on Assessment Method of Failure Pressure for Pipelines with Colony Corrosion Defects Based on Failure Location

A Crack Propagation Method for Pipelines with Interacting Corrosion and Crack Defects

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