Finite element analysis of the integrity of an API X65 pipeline with a longitudinal crack repaired with single- and double-bonded composites

Meriem-Benziane, Madjid; Abdul‐Wahab, Sabah A.; Zahloul, Hamou; Babaziane, Benoauda; Hadj-Meliani, Mohamed; Pluvinage, G.

doi:10.1016/j.compositesb.2015.03.008

Cited by 41 publications

(21 citation statements)

References 41 publications

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“…The best means of reparation of canalization is the bonded composite wrap because he is installed during T the continuity flow of the fluid and there is not hot work in order to avoid the risk of explosion. The use of the composite wrap as an alternative of the cracked replacement pipe often saves economical resources to immediately pay behind costs of repair [6][7][8][9][10]. After the realization of 2 to 65 composite wrap repairs on pipelines more than 300 mm of outer diameter can save 15.000 to 780.000 m 3 of natural gas by year.…”

Section: Introductionmentioning

confidence: 99%

Optimization of the geometrical parameters of bonded composite wrap for repairing cracked pipelines

Nesreddine

Bouadjra

Abdelkader

2018

Frattura Ed Integrità Strutturale

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In this study the finite element method is used to analyze the performances of bonded composite wrap repair of cracked steel pipelines. Parametric analysis was performed in order to highlight the effects of the geometrical properties on the repair efficiency. The experimental design method is used to explore the effects of wrap dimensions (length, angle and thickness) in order to optimize the repair process. We showed in using the MOODE.5 software the most dominant geometrical parameters on stress intensity factor at the crack front which to determine the most important parameters on the repair efficiency. This optimization can help the composite wrap designers to improve the repair performance and rehabilitation.

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Section: Introductionmentioning

confidence: 99%

Optimization of the geometrical parameters of bonded composite wrap for repairing cracked pipelines

Nesreddine

Bouadjra

Abdelkader

2018

Frattura Ed Integrità Strutturale

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“…In the second zone of the curves greater than 55 mm, the stress intensity factors decrease linearly for different pressures. In this situation, it can be noted that the decrease of elbow thickness allows to increase of the stress intensity factors (SIF) which indicated to increase the rate of the crack growth [30][31][32]. To show the important role of the patch especially the composite patch in the cracked elbow, a several analysis has been performed by varying the pressures 50, 60 and 70 bar respectively as shown in the figure 7.…”

Section: Thickness Effect In the Elbowmentioning

confidence: 99%

Finite element method investigation of geometrical influences of adhesive and patch in the safety for 90° elbow piping system

Gadi

Meriem-Benziane

Bouiadjra³

2019

JMES

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Piping system elbow study is the most important part in all fields of hydrocarbons transportation which presents the behaviour of circumferential crack at elbow extrados. The effect of geometry of adhesive and patch in the crack elbow is important in pipeline safety. This study shows the details for along the direction of the circumferential elbow crack by three dimensional (FEM) which is used to determine the stress intensity factor at 90° elbow for two cases: firstly, without patch and secondly, repaired with composite patch. This method allows to predict the behaviour of cracked elbow through the analysis of crack propagation under the internal different pressures taking into consideration the operating conditions. The geometry and nature of composite patch proved that the increase of patch thickness leads to decrease the SIF from 7 MPa.m 1/2 to 6.15 MPa.m 1/2 . It can be concluded that the repairing by composite materials leads to reduce the stress intensity factor with patch which not only can augment the lifetime of pipeline but also decreasing the costs and the pollution.

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“…After a long operation of many existing gas and liquid pipelines, the debonded regions on the external sides of pipelines often occur, and these regions are often modelled as cracks. Such cracks resulting from the corrosion may increase to critical dimensions and become adequate to cause the catastrophic structural failure during the operation of pressure vessels and pipelines …”

Section: Introductionmentioning

confidence: 99%

Predicting the crack opening displacements of a partially debonded pipeline in rock mass under P waves

Fang

Huang

Liu

2016

Fatigue Fract Eng Mat Struct

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A crack open may lead to the failure because of rupture or leak in the pipeline. In this paper, the dynamic crack opening displacements (CODs) of a partially debonded pipeline subjected to P and SV waves are predicted, and a mathematical model is proposed. The debonded region around the pipeline is modelled as an interface crack with non‐contacting faces. The wave fields in the bonded and debonded areas are expressed by wave function expansion method, and the expanded coefficients are determined by satisfying the boundary conditions with consideration of cracks. The CODs in the debonding area are represented by Chebyshev polynomials. Some examples are illustrated to analyse the CODs under different thicknesses of pipeline and different wave frequencies. In the region of high frequency, the value of CODs is more sensitive to the crack size. The difference between the CODs in the compression direction and shear directions is also examined. Comparison with existing results is given to validate this dynamic model.

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Finite element analysis of the integrity of an API X65 pipeline with a longitudinal crack repaired with single- and double-bonded composites

Cited by 41 publications

References 41 publications

Optimization of the geometrical parameters of bonded composite wrap for repairing cracked pipelines

Optimization of the geometrical parameters of bonded composite wrap for repairing cracked pipelines

Finite element method investigation of geometrical influences of adhesive and patch in the safety for 90° elbow piping system

Predicting the crack opening displacements of a partially debonded pipeline in rock mass under P waves

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