While around 60% of pipelines transmitting oil and gas worldwide experience corrosion and metal loss, the composite repair technique has become a popular option developed in recent decades. Employing a theoretical methodology, this study deals with corroded metallic pipes repaired by composite repair systems such that the focus is the impact of elastoplastic deformations on the failure pressure. In this methodology, the elastoplastic strains are taken into account by employing the bilinear isotropic hardening plastic flow theory with the von Mises yield criterion. Three modes are recognized based on the region where failure occurs, and the results are presented. The findings revealed that when the failure happens in the defect region, the proposed formula estimates the failure pressure more accurately than when it occurs either far from the defect or in the composite sleeve. Moreover, studying the bonding strength between the pipe, infill material, and composite patch shows that the interface bonding strength between the pipe and the polymer filler plays a more significant role than the interface bonding strength between the polymer filler and the composite repair. The results of this study can assist maintenance engineers in better evaluating the reliability of composite repaired pipelines.
KennedyJL. Oil and Gas Pipeline Fundamentals. Tulsa, OK, USA: Pennwell books, 1993.
2.
FrankelGS. Pitting corrosion of metals: a review of the critical factors. J Electrochem Soc1998; 145: 2186–2198.
3.
SchmittG. Global Needs for Knowledge Dissemination, Research, and Development in Materials Deterioration and Corrosion Control. New York: World Corrosion Organization, 2009.
4.
MahdiEEltaiE. Development of cost-effective composite repair system for oil/gas pipelines. Compos Structures2018; 202: 802–806.
5.
ShamsuddohaMIslamMMAravinthanT, et al.Effectiveness of using fibre-reinforced polymer composites for underwater steel pipeline repairs. Compos Structures2013; 100: 40–54.
6.
BezzerroukiMAlbedahABouiadjraBB, et al.Computation of the stress intensity factor for repaired cracks with bonded composite wrap in pipes under traction effect. J Thermoplastic Compos Mater2013; 26: 831–844.
7.
Meriem-BenzianeMAbdul-WahabSAZahloulH, et al.Finite element analysis of the integrity of an API X65 pipeline with a longitudinal crack repaired with single- and double-bonded composites. Composites B: Eng2015; 77: 431–439.
8.
ChanPHTshaiKYJohnsonM, et al.The flexural properties of composite repaired pipeline: numerical simulation and experimental validation. Compos Structures2015; 133: 312–321.
9.
SaeedNBajiHRonaghH. Reliability of corroded thin walled pipes repaired with composite overwrap. Thin-Walled Struct2014; 85: 201–206.
10.
LimKSAzraaiSNAYahayaN, et al.Behaviour of steel pipelines with composite repairs analysed using experimental and numerical approaches. Thin-Walled Struct2019; 139: 321–333.
11.
FreireJLFVieiraRDDinizJLC, et al.Part 7: effectiveness of composite repairs applied to damaged pipeline. Exp Tech2007; 31: 59–66.
12.
DuellJMWilsonJMKesslerMR. Analysis of a carbon composite overwrap pipeline repair system. Int J Press Vessels Piping2008; 85: 782–788.
13.
BruèreVMBouchonneauNMottaRS, et al.Failure pressure prediction of corroded pipes under combined internal pressure and axial compressive force. J Braz Soc Mech Sci Eng2019; 41: 172.
14.
MazurkiewiczLTomaszewskiMMalachowskiJ, et al.Experimental and numerical study of steel pipe with part-wall defect reinforced with fibre glass sleeve. Int J Press Vessels Piping2017; 149: 108–119.
15.
McCreadyJRKnofczynskiMKellerMW. Survivability of composite repairs of piping subjected to flexural loads. Int J Press Vessels Piping2017; 152: 7–14.
16.
SingLKYahayaNValipourA, et al.Mechanical properties characterization and finite element analysis of epoxy grouts in repairing damaged pipeline. J Press Vessel Technol2018; 140: 061701.
17.
KhanVCBalaganesanGPradhanAK, et al.Nanofillers reinforced polymer composites wrap to repair corroded steel pipe lines. J Press Vessel Technol2017; 139: 041411.
18.
ShadlouSTaheriF. On the effectiveness of composites for repair of pipelines under various combined loading conditions: a computational approach using the cohesive zone method. J Press Vessel Technol2017; 139: 021405.
19.
SirimannaCSBanerjeeSKarunasenaW, et al.Analysis of retrofitted corroded steel pipes using internally bonded FRP composite repair systems. Aust J Struct Eng2015; 16: 187–198.
20.
Costa MattosHSdReisJMLPaimLM, et al.Failure analysis of corroded pipelines reinforced with composite repair systems. Eng Fail Anal2016; 59: 223–236.
21.
BudheSBaneaMDRohemNRF, et al.Failure pressure analysis of composite repair system for wall loss defect of metallic pipelines. Compos Structures2017; 176: 1013–1019.
22.
BudheSBaneaMde BarrosS. Composite repair system for corroded metallic pipelines: an overview of recent developments and modelling. J Mar Sci Techn2019: 1–16.
23.
KuanhaiDYuanhuaLBingL, et al.Investigation on the calculation model of burst pressure for tube and casing under practical service environment. Int J Hydrogen Energ2019; 44: 23277–23288.
24.
RakshitDChakrabortyS. Determination of fracture parameters of FRP composites: a combined experimental and numerical investigation. J Compos Mater2015; 49: 231–241.
25.
da Costa-MattosHSReisJMLSampaioRF, et al.An alternative methodology to repair localized corrosion damage in metallic pipelines with epoxy resins. Mater Des2009; 30: 3581–3591.
26.
TrifonovOVCherniyVP. Analysis of stress–strain state in a steel pipe strengthened with a composite wrap. J Press Vessel Technol2014; 136: 051202.
27.
OnderASaymanODoganT, et al.Burst failure load of composite pressure vessels. Compos Structures2009; 89: 159–166.
28.
StephensDRFranciniRB. A review and evaluation of remaining strength criteria for corrosion defects in transmission pipelines. In: Proc ECTE/OMAE Joint Conference New Orleans,LA, USA, February 2000, pp.14-17
29.
AnonA. B31G–Manual for Determining the Remaining Strength of Corroded Pipelines–A Supplement to ANSI/ASME B31 Code for Pressure Piping. NY: American Society of Mechanical Engineers (ASME), 1991.
30.
de SilvaMLda Costa MattosHS. Prediction of the burst pressure for metallic pipelines with localized corrosion defects. In: IV International Symposium on Solid Mechanics-MecSol 2013, Porto Alegre-Brazil, 18–19 April 2013.
31.
NiuM. Composite Airframe Structures. Hong Kong: Hong Kong Conmilit Press Ltd, 1992.
32.
YeomKJLeeY-KOhKH, et al.Integrity assessment of a corroded API X70 pipe with a single defect by burst pressure analysis. Eng Fail Anal2015; 57: 553–561.
33.
Documentation AMS. R16. 2. ANSYS Inc, 2015.
34.
MurtazaUT.Javed HyderM. The effects of thermal stresses on the elliptical surface cracks in PWR reactor pressure vessel. Theor Appl Fracture Mech2015; 75: 124–136.
35.
ShoumanATaheriF. Compressive strain limits of composite repaired pipelines under combined loading states. Compos Structures2011; 93: 1538–1548.
36.
AlexanderCR. Development of a Composite Repair System for Reinforcing Offshore Risers. Doctor of Philosophy. Texas: Texas A&M University, 2007.
37.
EsmaeelRAKhanMATaheriF. Assessment of the environmental effects on the performance of FRP repaired steel pipes subjected to internal pressure. J Press Vessel Technol2012; 134: 041702.
38.
ChanPHTshaiKYJohnsonM, et al.Finite element modelling of composite repair in offshore pipe riser. Adv Mat Res2012; 557-559: 2239–2242.
39.
FreireJLFPerrutVABragaAMB, et al.Use of fiber bragg grating strain gages on a pipeline specimen repaired with a CFRE composite system. Exp Appl Mech2013; 4: 133–142.
40.
MeniconiLCFreireJLVieiraRD, et al.Stress analysis of pipelines with composite repairs. In: 4th International Pipeline Conference 2002, Calgary, Alberta, Canada, September 29–October 3, 2002. American Society of Mechanical Engineers (ASME), 2002: 2031–2037.
41.
PCC ASME. Repair of Pressure Equipment and Piping. NY, USA: American Society of Mechanical Engineers (ASME), 2006.
42.
ChiodoMSGRuggieriC. Failure assessments of corroded pipelines with axial defects using stress-based criteria: numerical studies and verification analyses. Int J Press Vessels Piping2009; 86: 164–176.
43.
ChoiJBGooBKKimJC, et al.Development of limit load solutions for corroded gas pipelines. Int J Press Vessels Piping2003; 80: 121–128.
44.
da Costa MattosHSReisJMLPaimLM, et al.Analysis of a glass fibre reinforced polyurethane composite repair system for corroded pipelines at elevated temperatures. Compos Structures2014; 114: 117–123.
