Creep Relaxation Behavior of High-Energy Piping

[+] Author and Article Information
Raymond K. Yee

Mechanical and Aerospace Engineering Department, San Jose State University, San Jose, CA 95192 e-mail: rkyee@sjsu.edu

Marvin J. Cohn

Aptech Engineering Services, Inc., Sunnyvale, CA 94089 e-mail: mcohn@aptecheng.com

J. Pressure Vessel Technol 122(4), 488-493 (Jul 24, 2000) (6 pages) doi:10.1115/1.1311958 History: Received September 28, 1999; Revised July 24, 2000
Copyright © 2000 by ASME
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Hibbitt Karlsson & Sorenson, Inc., ABAQUS Finite Element Code, Version 5.6, Providence, RI.
SST Systems, Inc., “CAEPIPE Computer Code User’s Manual,” Revision 20, Version 3.74.
Finnie,  I., and Shirmohamadi,  M., 1990, “Creep Deflection of Thick-Walled Piping Due to Combined Bending and Internal Pressure,” ASME J. Pressure Vessel Technol., 112, pp. 251–255.
Shirmohamadi, M., Ridgely, J., and Finnie, I., 1996, “Creep Relaxation Behavior of High Temperature Pressure Vessels,” ASME PVP-Vol. 336, pp. 267–271.
Boyle,  J. T., and Spence,  J., 1976, “Comparison of Approximate Methods for Estimation of the Creep Relaxation of a Curved Pipe,” J. Pressure Vessels Piping, 4, pp. 221–252.
Workman, G. H., and Rodabaugh, E. C., 1974, “Simplified Second Stage Creep/Relaxation Analysis of Moderately Complex Spatially Three-Dimensional Piping Systems,” ASME Paper No. 74-PVP-27, pp. 1–9.
Nakamura, K., and Boyle, J. T., 1986, “Approximate Methods for the Estimation of Elastic Follow-up in High Temperature Piping Systems,” Proc. International Conference on Creep, pp. 501–507.
American Society of Mechanical Engineers Code for Pressure Piping, B31.1, 1995 Edition, New York, NY.
American Standards Association Code for Pressure Piping, B31.1, 1955 Edition, New York, NY.
Roark, R. J., and Young, W. C., 1975, Formulas for Stress and Strain, McGraw-Hill, New York, NY, p. 504.
Cane, B. J., and Townsend, R. D., 1983, “Prediction of Remaining Life in Low-Alloy Steels,” Flow and Fracture at Elevated Temperatures, American Society for Metals, pp. 279–316.
Bailey,  R. W., 1956, “Creep Relationships and Their Application to Pipes, Tubes, and Cylindrical Parts Under Internal Pressure,” Proc. Inst. Mech. Eng., Part H, 164, pp. 425–431.
Cohn, M. J., 1995, “Prediction of Creep Life Exhaustion in High Energy Piping System Girth Welds,” ASME PVP-Vol. 315, pp. 221–228.
Cohn,  M. J., 1990, “Remaining Life of High-Energy Piping Systems Using Equivalent Stress,” ASME J. Pressure Vessel Technol., 112, pp. 260–265.


Grahic Jump Location
Illustration of CAEPIPE piping system model
Grahic Jump Location
Axial stress at elbow after 250,000 h of operating service—model 1
Grahic Jump Location
Hoop stress at elbow after 250,000 h of operating service—Model 1
Grahic Jump Location
Hoop stress creep relaxation curve at the pipe bend—Model 1
Grahic Jump Location
Hoop stress creep relaxation curve at the pipe bend—Model 2



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