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Research Papers: Pipeline Systems

Improved Folias Factor and Burst Pressure Models for Corroded Pipelines

[+] Author and Article Information
Bipul Chandra Mondal

Department of Civil Engineering,
Memorial University of Newfoundland,
St. John's, NL A1B 3X5, Canada
e-mail: bm6080@mun.ca

Ashutosh Sutra Dhar

Department of Civil Engineering,
Memorial University of Newfoundland,
St. John's, NL A1B 3X5, Canada
e-mail: asdhar@mun.ca

1Corresponding authors.

Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received May 12, 2017; final manuscript received November 14, 2017; published online December 22, 2017. Assoc. Editor: Hardayal S. Mehta.

J. Pressure Vessel Technol 140(1), 011702 (Dec 22, 2017) (9 pages) Paper No: PVT-17-1086; doi: 10.1115/1.4038720 History: Received May 12, 2017; Revised November 14, 2017

Burst pressure models are used for the fitness-for-purpose assessment of energy pipelines. Existing burst pressure models for corroded pipelines are unable to predict the pipe capacity correctly. In this paper, an improved burst pressure model is developed for corroded pipelines considering the burst pressure of flawless pipes and a reduction factor due to corrosion separately. The equation for the burst pressure of flawless pipe is revised based on the theory of the thick wall cylinder. A new model for the Folias factor is proposed for calculating the reduction factor. The new model for the Folias factor incorporates the depth of corrosion defect, whereas the existing models do not account for the effect of the defect depth. The authors' earlier work revealed that the Folias factor depends on the depth of defect. The proposed burst model reasonably predicts the burst pressures obtained from finite element (FE) analysis conducted in this study and the burst test results available in the published literature.

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References

Kiefner, J. F. , and Vieth, P. H. , 1989, “A Modified Criteria for Evaluating the Remaining Strength of Corroded Pipe,” American Gas Association, Washington, DC, Final Report No. PR 3-805.
ASME, 2012, “Manual for Determining the Remaining Strength of Corroded Pipelines,” American Society of Mechanical Engineers, New York, Standard No. B31G-2012. https://law.resource.org/pub/us/cfr/ibr/002/asme.b31g.1991.pdf
DNV, 2015, “Corroded Pipelines,” Det Norske Veritas, Oslo, Norway, Standard No. DNV-RP-F101. https://rules.dnvgl.com/docs/pdf/DNV/codes/docs/2010-10/RP-F101.pdf
BSI, 2013, “Guide to Methods for Assessing the Acceptability of Flows in Metallic Structure,” British Standard Institution, London, Standard No. BS 7910. https://shop.bsigroup.com/ProductDetail/?pid=000000000030346068
CSA, 2015, “Oil and Gas Pipeline Systems,” Canadian Standard Association, Mississauga, ON, Canada, Standard No. Z662-15. http://shop.csa.ca/en/canada/petroleum-and-natural-gas-industry-systems/cancsa-z662-15-/invt/27024912015
Mondal, B. C. , and Dhar, A. S. , 2016, “ Finite-Element Evaluation of Burst Pressure Models for Corroded Pipelines,” ASME J. Pressure Vessel Technol., 139(2), p. 021702.
Folias, E. S. , 1964, “The Stresses in a Cylindrical Shell Containing an Axial Crack,” Aerospace Research Laboratories, U.S. Air Force, OH, Report No. ARL 64-174. http://www.dtic.mil/docs/citations/AD0609669
Folias, E. S. , 1973, “ Thin Shell Structures,” Fracture in Pressure Vessels, Y. C. Fung and E. E. Schler , eds., Prentice-Hall, Upper Saddle River, NJ, pp. 483–518.
Mondal, B. C. , and Dhar, A. S. , 2016, “ Burst Pressure Assessment for Pipelines With Multiple Corrosion Defects,” Fifth International Structural Specialty Conference, London, ON, Canada, June 1–4, Paper No. STR-953-1. https://ir.lib.uwo.ca/cgi/viewcontent.cgi?referer=https://www.google.co.in/&httpsredir=1&article=1199&context=csce2016
Diniz, J. L. C. , Vieira, R. D. , Castro, J. T. , Benjamin, A. C. , and Freire, J. L. F. , 2006, “ Stress and Strain Analysis of Pipelines With Localized Metal Loss,” Exp. Mech., 46(6), pp. 765–775. [CrossRef]
Li, X. , Bai, Y. , Su, C. , and Li, M. , 2016, “ Effect of Interaction Between Corrosion Defects on Failure Pressure of Thin Wall Steel Pipeline,” Int. J. Pressure Vessels Piping, 138, pp. 8–18. [CrossRef]
Oh, C. K. , Kim, Y. J. , Baek, J. H. , Kim, Y. P. , and Kim, W. S. , 2007, “ Ductile Failure Analysis of API X65 Pipes With Notch-Type Defects Using a Local Fracture Criterion,” Int. J. Pressure Vessels Piping, 84(8), pp. 512–525. [CrossRef]
Chiodo, M. S. G. , and Ruggieri, C. , 2009, “ Failure Assessments of Corroded Pipelines With Axial Defects Using Stress-Based Criteria: Numerical Studies and Verification Analyses,” Int. J. Pressure Vessels Piping, 86(2–3), pp. 164–176. [CrossRef]
Fekete, G. , and Varga, L. , 2012, “ The Effect of the Width to Length Ratios of Corrosion Defects on the Burst Pressures of Transmission Pipelines,” J. Eng. Failure Anal., 21, pp. 21–30. [CrossRef]
Benjamin, A. C. , Freire, J. L. F. , Vieira, R. D. , de Diniz, J. L. C. , and Andrade, E. Q. D. , 2005, “Burst Tests on Pipeline Containing Interacting Corrosion Defects,” ASME Paper No. OMAE2005-67059.
Phan, H. , Dhar, A. , and Mondal, B. C. , 2017, “ Revisiting Burst Pressure Models for Corroded Pipelines,” Can. J. Civil Eng., 44(7), pp. 485–494.
Hearn, E. J. , 1997, Mechanics of Materials (An Introduction to the Mechanics of Elastic and Plastic Deformation of Solids and Structural Materials), Vol. 1, 3rd ed., Butterworth-Heinemann, Oxford, UK, pp. 215–221.
Cronin, D. S. , and Pick, R. J. , 2000, “Experimental Database for Corroded Pipe: Evaluation of RSTRENG and B31G,” ASME Paper No. IPC2000-190.
Freire, J. L. F. , Vieira, R. D. , Castro, J. T. P. , and Benjamin, A. C. , 2006, “ A Series on Applications of Experimental Techniques in the Field of Pipeline Integrity—Part 3: Burst Tests Pipeline With Extensive Longitudinal Metal Loss,” Exp. Tech., 30(6), pp. 60–65. [CrossRef]
Kim, Y. P. , Lee, Y. K. , Kim, W. S. , and Oh, K. H. , 2004, “The Evaluation of Failure Pressure for Corrosion Defects Within Girth or Seam Weld in Transmission Pipelines,” ASME Paper No. IPC2004-0216.
Chen, Y. , Zhang, H. , Zhang, J. , Li, X. , and Zhou, J. , 2015, “ Failure Analysis of High Strength Pipeline With Single and Multiple Corrosions,” J. Mater. Des., 67, pp. 552–557. [CrossRef]
Sadasue, T. , Kubo, T. , Glover, A. , Ishikawa, N. , Horsley, D. , Igi, S. , Endo, S. , and Toyoda, M. , 2004, “Ductile Cracking Evaluation of X80/X100 High Strength Linepipes,” ASME Paper No. IPC2004-0249.
Ma, B. , Shuai, J. , Liu, D. , and Xu, K. , 2013, “ Assessment on Failure Pressure of High Strength Pipeline With Corrosion Defects,” Eng. Failure Anal., 32, pp. 209–219. [CrossRef]

Figures

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Fig. 1

Comparison of Folias factors obtained from FE analysis and design codes (after Mondal and Dhar [6])

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Fig. 2

Typical finite element mesh: (a) full pipe and (b) zone around corroded area

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Fig. 3

von Mises stress and the location of failure

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Fig. 4

Variations of the Folias factor

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Fig. 5

Comparison of Folias factors

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Fig. 6

Folias factors with depth of corrosion defect

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Fig. 7

Comparison of burst pressure predicted using the proposed model and FE results

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Fig. 8

Comparison of burst pressure obtained from different models

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Fig. 9

Comparison of proposed burst pressure model with test results

Tables

Errata

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