Transactions of the Korean Society of Pressure Vessels and Piping (한국압력기기공학회 논문집)

Korean Society of Pressure Vessels and Piping (한국압력기기공학회)
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Applicability of Existing Fracture Initiation Models to Modern Line Pipe Steels

  • Received : 2016.11.18
  • Accepted : 2016.12.18
  • Published : 2016.12.30
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Abstract

The original fracture criteria developed by Maxey/Kiefner for axial through-wall and surface-cracked pipes have worked well for many industries for a large variety of relatively low strength and toughness materials. However, newer line pipe steels have some unusual characteristics that differ from these older materials. One example is a test data that has demonstrated that X80 line-pipe with an axial through-wall-crack can fail at pressures about 30 percent lower than predicted with commonly used analysis methods for older steels. Thus, it is essential to review the currently available models and investigate the applicability of these models to newer high-strength line pipe materials. In this paper, the available models for predicting the failure behavior of axial-cracked pipes (through-wall-cracked and external surface-cracked pipes) were reviewed. Furthermore, the applicability of these models to high-strength steel pipes was investigated by analyzing limited full-scale pipe fracture initiation test results. Based on the analyzed results, the shortcomings of the available models were identified. For both through-wall and surface cracks, the major shortcomings were related to the characterization of the material toughness, which generally leads to non-conservative predictions in the J-T analyses. The findings in this paper may be limited to the test data that were consider for this study. The requisite characteristics of a potential model were also identified in the present paper.

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References

  1. Kiefner, J.F., Maxey, W.A., Eiber, R.J., and Duffy, A.R., "Failure Stress Levels of Flaws in Pressurized Cylinders," Progress in Flaw Growth and Fracture Toughness Testing, ASTM STP 536, American Society for Testing and Materials, 1973, pp. 461-481.
  2. Eiber, R.J., Bubenik, T.A., and Maxey, W.A., "Fracture Control Technology for Natural Gas Pipelines," NG-18 Report No. 208 to Line Pipe Research Supervisory Committee of the Pipeline Research Committee of the American Gas Association, Project PR-3-9113, December 1993.
  3. Eiber, R.J., Maxey, W.A., and Duffey, A.R., "Investigation of the Initiation and Extent of Ductile Pipe Rupture," Battelle Memorial Institute Report, BMI-1908, 1971.
  4. Scott, P., Wilkowski, G., Sturm, D., and Stoppler, W., "Development of a Database of Pipe Fracture Experiments," Nuclear Engineering and Design, Vol. 151, pp. 359-371, 1994. https://doi.org/10.1016/0029-5493(94)90181-3
  5. Eiber, R.J., Maxey, W.A., and Duffy A.R., "Fracture Investigation of Pipe for LNG Service," Battelle- Columbus report to A.G.A. on Project PR-3-42, December 30, 1971.
  6. Kawaguchi, S., Hagiwara, N., Ohata, M., and Toyoda, M., "Modified Equation to Predict Leak/Rupture Criteria for Axially Through-Wall Notched X80 and X100 Linepipes Having Higher Charpy Energy," Proceedings of International Pipeline Conference 2004, Paper number IPC04-0322.
  7. Kawaguchi, S., Hagiwara, N., Masuda, T., and Toyoda, M., "Evaluation of Leak-Before-Break(LBB) Behavior for Axially Notched X65 and X80 Line Pipes," Journal of Offshore Mechanics and Arctic Engineering, Vol. 126, 2004, pp. 350-357. https://doi.org/10.1115/1.1834619
  8. Mannucci, G., Demofonti, G., and Di Biagio, M., "X100-Fracture Initiation and Propagation," Proceedings of Conference on Super High Strength Steels, November 2005.
  9. Wilkowski, G.M. and Scott, P.M., "A Statistical Based Circumferentially Cracked Pipe Fracture Mechanics Analysis for Design on Code Implementation," Nuclear Engineering and Design, Vol. 3, pp. 173-187, 1989.
  10. Hiser, A.L., Loss, F.J., and Menke, B.H., "J-R Curve Characterization of Irradiated Low Upper Shelf Welds," NUREG/CR-3506, April 1984.
  11. Kanninen, M.F., Wilkowski, G.M., Pan, J., Ahmad, J., Marschall, C.W., Gilbert, E.R., Popelar, C.H., Broek, D., "The Development of a Plan for Assessment of Degraded Nuclear Piping by Experimental and Tearing Instability Fracture Mechanics Analysis-Appendices," NUREG/CR-3142 Vol. 2, June 1983.
  12. Leis, B., Brust, F., and Scott, P., "Development and Validation of a Ductile Flaw in Growth Analysis for Gas Transmission Line Pipe," NG-18 Report No. 193, Pipeline Research Council International, 1991.
  13. Jaske, C. and Beavers, J., "Development and Evaluation of Improved Model for Engineering Critical Assessment of Pipelines," Proceedings of International Pipeline Conference 2002, Paper number IPC2002-27027.
  14. "R6 - Assessment of the Integrity of Structures Containing Defects," Revision 4, British Energy Generation Ltd., 2001.
  15. "API RP579 - Recommended Practice for Fitness-For-Service," American Petroleum Institute, 2000.
  16. Maxey, W., Kiefner, J.F., and Eiber, R.J., "Ductile Fracture Arrest in Gas Pipelines," A.G.A. Catalogue number L32176, May 1976.
  17. Dugdale, D.B., "Yielding of Steel Sheets Containing Slits", Journal of Mech. and Physics, Vol. 8, pp. 100, 1960. https://doi.org/10.1016/0022-5096(60)90013-2
  18. Folias, E.S., "Fracture of Pressurized Cylinders", Report to Battelle Memorial Institute, 1969.
  19. Kawaguchi, S., PhD thesis (in Japanese), 2004.
  20. Paris, P.C., Tada, H., Zahoor, A., and Ernst, H., "The Theory of Instability of the Tearing Mode of Elastic- Plastic Crack Growth," Elastic-Plastic Fracture, STP 668, ASTM, Philadelphia, pp. 5-36, 1979.
  21. Kawaguchi, S., Hagiwara, N., Rudland, D., and Wilkowski, G., "Evaluation of Leak/Rupture Limit for Axially Through-Wall Notched Line Pipes Using J-Integral Resistance Curve," IPC2006-10505, Proceedings of IPC 2006, 2006 International Pipe line Conference, September 25-29, 2006, Calgary, Alberta, Canada.
  22. Zahoor, A., Ductile Fracture Handbook, NP-6301-D, N14-1, Electric Power Research Institute, 1989.
  23. Ainsworth, R.A., "The Assessment of Defects in Structures of Strain Hardening Materials," Engineering Fracture Mechanics, Vol. 19, pp.633-642, 1984. https://doi.org/10.1016/0013-7944(84)90096-1
  24. Kim, Y.-J., Huh, N.-S., Park, Y.-J., and Kim, Y.-J., "Elastic-Plastic J and COD Estimates for Axial Through-Wall Cracked Pipes," International Journal of Pressure Vessels and Piping, Vol. 79, pp.451-464, 2002. https://doi.org/10.1016/S0308-0161(02)00030-3
  25. Kim, Y.-J., Oh, C.-S., and Song, T.-K., "Net-Section Limit Pressure and Engineering J Estimates for Axial Part-Through Surface Cracked Pipes," PVP2007-26220, Proceedings of PVP2007, 2007 ASME Pressure Vessels and Piping Conference, July 22-26, 2007, San Antonio, Texas.
  26. Leis, B.N. and Ghadiali, N.D., "Pipe Axial Flaw Failure Criteria (PAFFC) - Version 1.0 User's Manual and Software," NG-18 Report No. 211, Pipeline Research Council International, Inc., 1994.
  27. Leis, B.N., Walsh, W.J. and Brust, F.W., "Topical Report on Mechanical Behavior of Selected Line-Pipe Steels," NG-18 Report No. 192, Pipeline Research Council International, Inc., 1990.
  28. Shih, C.F., German, M.D., and Kumar, V., "An Engineering Approach for Examining Crack Growth and Stability in Flawed Structures", G.E. Report No. 80CRD205, August 1980.
  29. Leis, B.N. and Brust, F.W., "Ductile Fracture Properties of Selected Line-Pipe Steels," NG-18 Report No. 183, Pipeline Research Council International, Inc., 1990.
  30. Mohan, R. and others, "Effects of Toughness Anisotropy and Combined Tension, Torsion, and Bending Loads on Fracture Behavior of Ferritic Nuclear Pipe," NUREG/CR-6299, April 1995.
  31. Jaske, C.E., 1996, "CorLAS 1.0 User Manual: Computer Program for Corrosion-Life Assessment of Piping and Pressure Vessels," Version 1.0, CC Technologies Systems, Inc., Dublin, OH.
  32. Jaske, C.E. and Beavers, J.A., "Integrity and Remaining Life of Pipe with Stress Corrosion Cracking," PRCI Report, Catalog No. L51928, 2001.
  33. Jaske, C.E., "Estimation of the C* Integral for Creep-Crack-Growth Test Specimens," The Mechanism of Fracture, ASM International, Materials Park, OH, pp. 577-586, 1986.
  34. Shih, C.F. and Hutchinson, J.W., "Fully Plastic Solutions and Large Scale Yielding Estimates for Plane Stress Crack Problems," Report No. DEAP S-14, Harvard University, Cambridge, MA, July, 1975.
  35. ABAQUS Version 6.6-1 User's manual, ABAQUS, Inc., 2006.