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RESEARCH PAPER

A Study of the Residual Stress Distribution in an Autofrettaged, Thick-Walled Cylinder With Cross-Bore

[+] Author and Article Information
Amer Hameed, R. D. Brown

Engineering Systems Department, Cranfield University, UK

John Hetherington

Head of Engineering Systems Department, Cranfield University, UK

J. Pressure Vessel Technol 126(4), 497-503 (Dec 01, 2004) (7 pages) doi:10.1115/1.1811111 History: Received May 19, 2003; Revised May 24, 2004; Online December 01, 2004
Copyright © 2004 by ASME
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References

Bland,  D. R., 1956, “Elasto-plastic Thick Walled Tube of Work Hardening Material Subjected to Internal and External Pressure and to Temperature Gradients,” J. Mech. Phys. Solids, 4, pp. 209–229.
Chen, P. C. T., 1986, “A New Method of Predicting Residual Stresses in Autofrettaged Gun Barrel,” Technical report No. ARCCB-TR86012., US Army Research and Development Center Benet Weapon Laboratory., Watervliet, NY 12189-4050.
Hameed. A., Brown, R. D., and Hetherington, J. G., 1998, “Comparison of the Residual Stresses in a Gun Barrel Due to the Process of Autofrettage (Evaluated Using Sachs Method) With That of Simulated Autofrettaged Model Using the Finite Element Method,” Vth European Indirect Fire Symposium, Cranfield University RMCS, Shrivenham, SN6 8LA.
Masu,  L. M., 1997, “ross-Bore Configuration and Size Effect on the Stress Distribution in Thick-walled Cylinders,” Int. J. Pressure Vessels Piping, 72, pp. 171–176.
Masu,  L. M., 1994, “Plastic Analysis and Cross-bore Size Effects on the Fatigue Strength of Thick-Walled Cylinders,” East African Journal of Engineering, 1(2), pp. 22.
Faupel,  J. H., and Harris,  B., 1957, “Stress Concentration in Heavy Walled Cylindrical Pressure Vessels: Effect of Elliptical and Circular Side Holes,” Journal of Industrial and Engineering Chemistry, 49(12), pp. 1979–1986.
Cole,  B. N., Craggs,  G., and Ficenec,  I., 1976, “Strength of Cylinders Containing Radial or Offset Cross-Bores,” J. Mech. Eng. Sci., 18(6), pp. 279–286.
Tan,  C. L., 1986, “Stress Distribution in Thick-Walled Cylinders Due to Introduction of Cross-Bore after Autofrettage,” J. Strain Anal., 21(3), pp. 177–183.
Fessler,  H., and Lewin,  B. H., 1956, “Stress Distribution in a Tee Junction of Thick-Pipes,” Br. J. Appl. Phys., 1, pp. 76–79.
Morrison,  J. L. M., Crossland,  B., and Parry,  J. S. C., 1972, “Fatigue Strength of Cylinders With Side Holes and Cross-Holes,” ASME J. Eng. Ind., 94, pp. 815–824.
Murthy,  M. V. V., and Bapu Rao,  M. N., 1970, “Stresses in a Cylindrical Shell Weakened by an Elliptic Hole with Major Axis Perpendicular to Shell Axis,” ASME J. Appl. Mech., 37, pp. 530–541.
Fenner,  R. T., and Nadiri,  F., 1985, “On the use of Elliptical Side Branches to Thick-Walled Cylinders,” Int. J. Pressure Vessels Piping, 20, pp. 139–154.
Crossland, B., and Skelton, W. J., 1967, “Effect of Varying Hardness on the Fatigue Strength of Thick-Walled Cross-bore Cylinders of En 25,” Proceedings of the Institution of Mechanical Engineers, 182 , (Part 3C), pp. 106–114.
Austin, B. A., and Crossland, B., 1965, “Low Endurance Fatigue Strength of Thick-Walled Cylinders: Development of a Testing Machine and Preliminary Results,” Proceedings of the Institution of Mechanical Engineers, 180 , (Part 1), IMechE, UK, p. 43.
Chaaban, A., and Burns, D. J., 1986, “Design of High Pressure Vessels With Radial Cross-Bores,” Physica, 130 and 140B, pp. 766–772.
Desjardins,  J. L., Burns,  D. J., and Thompson,  J. C., 1991, “Weight Function Technique for Estimating Stress Intensity Factors for Cracks in High Pressure Vessels,” ASME J. Pressure Vessel Technol., 113(1), pp. 10–21.
Chaaban, A., Leung, K., and Burns, D. J., 1986, “Residual Stresses in Autofrettaged Thick-Walled, High Pressure Vessels,” ASME Pressure Vessels and Piping Div Publication, 110 , ASME, New York, pp. 55–60.
Franklin, G. J., and Morison, J. L. M., 1960, “Autofrettage of Cylinders: Prediction of Pressure/External Expansion Curves and Calculation of Residual Stresses,” Proceedings of the Institution of Mechanical Engineers, 174 (3), IMechE, UK, pp. 947–974.
Parker,  A. P., and Underwood,  J. H., 1996, “Stress Concentration, Stress Intensity and Fatigue Crack Growth Along Evacuators of Pressurized, Autofrettaged Tubes,” ASME J. Pressure Vessel Technol., 118, pp. 336–343.
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Parker, A.P., 2003, private communication.

Figures

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Thick-walled cylinder showing different configurations of cross-bores
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Cylinder model showing the location of radial cross-bore and the paths along which stress/strain is mapped for the analysis
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Stress-strain plot showing the Bauschinger effect as used in ANSYS
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Comparison of residual stress distribution along a radial hole in an autofrettaged barrel (before (BMB) and after (AMB) machining of hole)
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Variation in residual stress along the path DN, before and after the autofrettage
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Variation in residual stress along the path DN, before and after the cross-bore
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Variation in residual stress along the path KJ, before and after the cross-bore
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Variation in residual stress along the path KL, before and after machining the cross-bore
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Comparison of residual stress distribution in a gun tube, assuming ideal material, before and after machining of radial cross-bore
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Variation in plastic strain along the path AB, before and after machining the radial cross-bore
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Variation in residual stress along the path EF, before and after machining the cross-bore
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Variation in residual stress distribution along the path AB
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Variations in circumferential residual stress distribution along the path AB due to introduction of a cross bore of various diameter
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Variation in circumferential stress at the outer diameter in axial direction along the path BP
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Variation in circumferential stress at the inner diameter along the path AN
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Variation in axial stress and circumferential stress at the bore along the path KL
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Comparison along path EF of residual stress in the vicinity of a bore machined before and after autofrettage
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Comparison along path AB of residual stress in the vicinity of a bore machined before and after autofrettage
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Comparison along path DN of residual stress in the vicinity of a bore machined before and after autofrettage
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Comparison along path KL of residual stress in the vicinity of a bore machined before and after autofrettage
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Comparison along path KJ of residual stress in the vicinity of a bore machined before and after autofrettage.

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