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TECHNICAL PAPERS

Actual Unloading Behavior and Its Significance on Residual Stress in Machined Autofrettaged Tubes

[+] Author and Article Information
Hamid Jahed, Ghader Ghanbari

Mechanical Engineering Department, Iran University of Science & Technology, Tehran, Iran 16844

J. Pressure Vessel Technol 125(3), 321-325 (Aug 01, 2003) (5 pages) doi:10.1115/1.1593070 History: Received March 13, 2003; Received April 23, 2003; Online August 01, 2003
Copyright © 2003 by ASME
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References

Kendall,  D. P., 2002, “A Short History of High Pressure Technology From Bridgman to Division 3,” ASME J. Pressure Vessel Technol., 122, pp. 229–233.
Perl,  M., and Arone,  R., 1994, “An Axisymmetric Stress Release Method for Measuring the Autofrettage Level in Thick-Walled Cylinders—Part 1: Basic Concept and Numerical Simulation,” ASME J. Pressure Vessel Technol., 116, pp. 384–388.
Milligan,  R. V., Koo,  W. H., and Davidson,  T. E., 1966, “The Bauschinger Effect in a High-Strength Steel,” J. Basic Eng., pp. 480–488.
Bauschinger,  J., 1881, “Ueber die Veranderung der Elasticitatagrenze und dea Elasticitatamoduls Verschiadener Metalle,” Zivilingenieur, 27 , pp. 289–348.
Kendall, D. P., 1998, Discussion of paper “The Bauschinger Effect in Autofrettaged Tubes—A Comparison of Models Including the ASME Code,” by A. P. Parker and J. H. Underwood, Proceedings, ASME Pressure Vessels and Piping Conference, San Diego, CA.
Stacey,  A., and Webster,  G. A., 1988, “Determination of Residual Stress Distribution in Autofrettaged Tubing,” Int. J. Pressure Vessels Piping, 31, pp. 205–220.
Chaaban, A., 1985, “Static and Fatigue Design of High Pressure Vessels With Blind-End and Cross-Bores,” Ph.D. thesis, University of Waterloo, Waterloo, Ontario, Canada.
Chaaban,  A., Leung,  K., and Burns,  D. J., 1986, “Residual Stress in Autofrettaged Thick-Walled High Pressure Vessels,” ASME PVP, 110 , pp. 55–60.
Chen,  P. C. T., 1986, “The Bauschinger and Hardening Effect on Residual Stresses in an Autofrettaged Thick-Walled Cylinder,” ASME J. Pressure Vessel Technol., 108, pp. 108–112.
Megahed,  M. M., and Abbas,  A. T., 1991, “Influence of Reverse Yielding on Residual Stresses Induced by Autofrettage,” Int. J. Mech. Sci., 33, pp. 139–150.
Poussard,  C., Pavier,  M., and Smith,  D. J., 1995, “Analytical and Finite Element Predictions of Residual Stresses in Cold Worked Fastener Holes,” J. Strain Anal. Eng. Des., 30, pp. 291–304.
Jahed,  H., and Dubey,  R. N., 1996, “Residual Stresses Calculation in Autofrettage Using Variable Material Properties Method,” ASME PVP, Residual Stress in Design, Fabrication, Assessment and Repair, 327 , pp. 181–188.
Jahed,  H., and Dubey,  R. N., 1997, “An Axisymmetric Method of Elastic-Plastic Analysis Capable of Predicting Residual Stress Field,” ASME J. Pressure Vessel Technol., 119, pp. 264–273.
Parker, A. P., and Underwood, J. H., 1998, “Influence of the Bauschinger Effect on Residual Stress and Fatigue Lifetimes in Autofrettaged Thick-Walled Cylinders,” Fatigue and Fracture Mechanics: 29th Volume, ASTM STP 1321, T. L. Panontin and S. D. Sheppard, eds.
Parker,  A. P., Underwood,  J. H., and Kendall,  D. P., 1999, “Bauschinger Effect Design Procedure for Autofrettaged Tubes Including Material Removal and Sachs’ Method,” ASME J. Pressure Vessel Technol., 121, pp. 430–437.
Jahed, H., 1997, Variable Material Property Approach for Elastic-Plastic Analysis of Proportional and Nonproportional Loading, Ph.D. thesis, University of Waterloo, Waterloo, Ontario, Canada.
ANSYS, 2000, Element Manual, Ver. 5.7.
Bailey, J. A. “Fundamental Aspects of Torsional Loading,” Metal Handbook, 8 , ASM International, Materials Park, OH, pp. 139–144.

Figures

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Torsion of a circular section
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Actual stress-strain behavior
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Actual behavior versus ideal model
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Residual stresses profile incorporating actual behavior and ideal model
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Residual stresses profile incorporating actual behavior and bilinear model
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Comparison of removal simulation using ANSYS and VMP
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Final residual stress field of a machined tube using actual loading-unloading behavior

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