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TECHNICAL PAPERS

Bolt Head Fillet Stress Concentration Factors in Cylindrical Pressure Vessels

[+] Author and Article Information
Gowri Srinivasan

Irving, TX 75063

Terry F. Lehnhoff

Department of Mechanical and Aerospace Engineering and Engineering Mechanics, University of Missouri-Rolla, Rolla, MO 65401-0050e-mail: lehnhoff@umr.edu

J. Pressure Vessel Technol 123(3), 381-386 (Apr 20, 2001) (6 pages) doi:10.1115/1.1379530 History: Received May 17, 2000; Revised April 20, 2001
Copyright © 2001 by ASME
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References

ASME Boiler and Pressure Vessel Code, 1998, Section VIII, Division 1, Appendix Y.
VDI 2230, 1986, Part 1, “Systematic Calculation of High Duty Bolted Joints: Joints with One Cylindrical Bolt,” VDI, Dusseldorf, Germany.
Pilkey, W. D., 1997, Peterson’s Stress Concentration Factors, John Wiley & Sons, Inc., New York, NY.
Shigley, J. E., and Mischke, C. R., 1989, Mechanical Engineering Design, McGraw-Hill, 5th Edition, New York, NY.
Srinivasan, G., 2000, “Bolt Head Fillet Stress Concentration Factors in Cylindrical Pressure Vessels,” M.S. thesis, University of Missouri-Rolla, Rolla, MO.
Bickford, J. H., 1995, An Introduction to the Design and Behavior of Bolted Joints, Marcel Dekker, Inc., 3rd Edition.
Lehnhoff, T. F., and Bunyard, B. A., 1999, “Bolt Thread and Head Fillet Stress Concentration Factors,” ASME PVP-Vol. 398, Recent Advances in Solids and Structures, pp. 103–108.

Figures

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Typical eccentrically loaded bolted joint
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General pressure vessel flange dimensions
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Stress concentration factor versus element size for bolt in tension
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Typical finite element mesh for bolted pressure vessel flanges
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Close-up of critical area of the bolt head fillet
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Wireframe model of bolted pressure vessel flanges with loads
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Stress concentration factor versus bolt circle diameter for outer flange diameter=1021 mm
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Stress concentration factor versus outer flange diameter for bolt circle diameter=970.2 mm
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Maximum bolt stress versus bolt circle diameter for outer flange diameter=1021 mm
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Maximum bolt stress versus outer flange diameter for bolt circle diameter=970.2 mm
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Typical stress contour at critical area of the bolt head fillet
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Deformed geometry of bolted pressure vessel flanges

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