Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Development of Assessment Methodology for Locally Corroded Pipe Using Reference Stress Concept

참조응력개념을 이용한 국부감육배관 평가법 개발

  • 임환 (성균관대학교 기계공학부) ;
  • 심도준 (성균관대학교 기계공학부) ;
  • 김윤재 (성균관대학교 기계공학부) ;
  • 김영진 (성균관대학교 기계공학부)
  • Published : 2003.07.01
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Abstract

In this paper, a unified methodology based on the local stress concept to estimate residual strength of locally thinned pipes. An underlying idea of the proposed methodology is that the local stress in the minimum section for locally thinned pipe is related to the reference stress, popularly used in creep problems. Then the problem remains how to define the reference stress, that is the reference load. Extensive three-dimensional finite element (FE) analyses were performed to simulate full-scale pipe tests conducted for various shapes of wall thinned area under internal pressure and bending moment. Based on these FE results, the reference load is proposed, which is independent of materials. A natural outcome of this method is the maximum load capacity. By comparing with existing test results, it is shown that the reference stress is related to the fracture stress, which in turn can be posed as the fracture criterion of locally thinned pipes. The proposed method is powerful as it can be easily generalised to more complex problems, such as pipe bends and tee-joints.

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References

  1. American Society of Mechanical Engineer, 1991, 'Manual for Remaining Strength of Corroded Pipelines,' ANSI/ASME B31.G
  2. American Society of Mechanical Engineer, 1998, 'Requirement for Analytical Evaluation of Pipe Wall Thinning,' ASME B&PV Code Sec. XI, Division 1, Code Case N-597
  3. Roy, S., Grigory, S., Smith, M., Kanninen, M.F. and Anderson, M., 1997, 'Numerical Simulations of Full Scale Corroded Pipe Tests with Combined Loading,' ASME J Pressure Vessel Technology, Vol. 119, pp. 457-466 https://doi.org/10.1115/1.2842330
  4. Miyazaki, K., Kanno, S., Ishiwata, M., Hasegawa, K., Ahn, S.H. and Ando, K., 1999, 'Fracture Behavior of Carbon Steel Pipe with Local Wall Thinning Subject to Bending Load,' Nuclear Engineering Design, Vol. 191, pp. 195-204 https://doi.org/10.1016/S0029-5493(99)00141-7
  5. Smith, M.Q. and Waldhart, C.J., 2000, 'Combined Loading Tests of Large Diameter Corroded Pipelines,' Proc. Int. Pipeline Conf., Vol. 2, pp. 769-779
  6. Stephens, D.R. and Lei, B.N., 2000, 'Development of Alternative Criterion for Residual Strength of Corrosion Defects in Moderate-to High-Toughness Pipe,' Proc. Int. Pipeline Conf., Vol. 2, pp. 781-792
  7. Cronin, D. and Pick, R.J., 2000, 'Experimental Database for Corroded Pipe: Evaluation of RSTRENG and B31G,' Proc. Int. Pipeline Conf., Vol. 2, pp. 757-767
  8. Stephens, D.R. and Francini, R.B., 2000, 'A review and Evaluation of Remaining Strength Criteria for Corrosion Defect in Transmission Pipelines,' Proc. ECTEIOMAE Joint Conference, pp. 1-11
  9. Kim, J.W., Park, C.Y., Lee, S.H. and Kang, T.Y., 2001, 'Effects of Thinning Length on Failure Mode of Local Wall Thinned Pipe,' Proc. KSME Spring Annual Meeting A., pp. 357-362
  10. Shim, D.J., Lim, H., Choi, J.B., Kim, YJ., Kim, J.W. and Park, C.Y., 2003, 'Effect of Wall Thinned Shape and Pressure on Failure of Wall Thinned Nuclear Piping Under Combined Pressure and Bending Moment,' Transaction of the KSME (A), Vol. 27, No. 5, pp. 742-749 https://doi.org/10.3795/KSME-A.2003.27.5.742
  11. Kiefner, J.F and Vieth, P.H., 1989, 'A Modified Criterion for Evaluating the Remaining Strength of Corroded Pipe,' American Gas Association, Catalog No. L51609, PR3-805
  12. Leis, B.N and Stephens, D.R., 1997, 'An Alternative Approach to Assess the Integrity of Corroded Line Pipe-Part I: Current Status,' and 'Part II: Alternative Criterion,' Proc. 7th Int.. Offshore Polar Engineering Conference
  13. Kanninen, M.F, Broek, D., Marschall, C.W., Rybicki, E.F, Sarnpath, S.G., Simonen, F.A. and Wilkowski, G.M., 1976, 'Mechanical Fracture Predictions for Sensitized Stainless Steel Piping with Circumferential Cracks,' Final Report, EPRI NP-I92, USA
  14. Vieth, P.H. and Kiefner, J.F., 1994, 'Database of Corroded Pipe Tests,' Pipeline Research Supervisory Committee, PRC International, AGA Catalog Number L51689
  15. Kim, Y.P., Baek, J.R., Kim, W.S. and Kho, Y.T., 2002, 'The Evaluation of Burst Pressure for Corroded Pipeline by Full Scale Burst Test,' Proc. KSME Spring Annual Meeting A., pp. 203-210
  16. Ainsworth, R.A., 1984, 'The Assessment of Defects in Structures of Strain Hardening Materials,' Eng. Fract. Mech., Vol. 19, pp. 633-642 https://doi.org/10.1016/0013-7944(84)90096-1
  17. Penny, R.K. and Marriott, D.L., 1995, Design for Creep, 2nd Ed., Chapman & Hall
  18. R5, 1998, 'An Assessment Procedure for the High Temperature Response of Structures,' Revision 2, British Energy Generation Ltd
  19. ABAQUS, 2001, ABAQUS User's Manual, Hibbitt, Karlson & Sorensen, Inc.
  20. Miller, A. G, 1988, 'Review of Limit Loads of Structures Containing Defects,' Into J. Pressure Vessels Piping, Vol. 32, pp. 191-327 https://doi.org/10.1016/0308-0161(88)90073-7
  21. Shim, D.J., Kim, Y.J., Kim, Y.J., Hwang, S.S. and Kim, J.S., 2002, 'Plastic Limit Load Solutions for Circumferential Surface Cracked Cylinders Under Combined Loading,' Submitted to Transaction of the KSME(A)