Sleeved Cone-Cylinder Intersection under Internal Pressure
Publication: Journal of Engineering Mechanics
Volume 124, Issue 9
Abstract
Conical shells feature commonly in pressure vessels and piping, for example as reducers and end closures. When a conical shell is joined to a cylindrical shell, a slope discontinuity is introduced in the shell meridian, leading to local high bending and circumferential membrane stresses when the shell is pressurized. The strength of cone-cylinder intersections is therefore a major concern for the designer. This paper presents an investigation into the collapse behavior and strength of cone large end-to-cylinder intersections with locally increased wall thickness (i.e., sleeving or sleeve reinforcement) under internal pressure. The study is aimed at developing a simple method for the estimation of the axisymmetric failure strength. Simple equations for the plastic limit loads are first developed based on small deflection elastic-plastic finite-element calculations. An approximate procedure for taking into account the beneficial effect of geometrical change is then suggested and briefly discussed. The strength equations established here are directly applicable in practical design and are suitable for future inclusion into pressure vessel codes.
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References
1.
ASME boiler and pressure vessel code. (1992). American Society of Mechanical Engineers, New York, N.Y.
2.
Davie, J., Elsharkawi, K., and Taylor, T. E.(1978). “Plastic collapse pressures for conical heads of cylindrical pressure vessels and their relation to design rules in two British Standard specifications.”Int. J. Pressure Vessels and Piping, 6, 131–145.
3.
Gabriel, B. (1996). “Behaviour and strength of plate-end and cone-end pressure vessels,” MSc thesis, Dept. of Civ. and Sys. Engrg., James Cook University of North Queensland, Townsville, Australia.
4.
Hayakawa, T., Yoshida, T., and Mii, T. (1977). “Collapse pressure for the small end of a cone-cylinder junction based on elastic-plastic analysis.”Proc., 3rd Int. Conf. on Pressure Vessel Technol., Tokyo, Japan, 149–156.
5.
Jones, N.(1969). “The collapse pressure of a flush cylindrical nozzle intersecting a conical pressure vessel axisymmetrically.”Int. J. Mech. Sci., 11, 401–415.
6.
Kalnins, A., and Updike, D. P.(1995). “Effect of reinforcement on the strength of junctions between cylindrical and conical shells.”J. Pressure Vessel Technol., 117, 135–141.
7.
Myler, P., and Robinson, M.(1985). “Limit analysis of intersecting conical vessels.”Int. J. Pressure Vessels and Piping, 18, 209–240.
8.
Rotter, J. M. (1987). “The buckling and plastic collapse of ring stiffeners at cone/cylinder junctions.”Proc., Int. Colloquium on Stability of Plate and Shell Struct., European Convention for Constructional Steelwork, Gent, Belgium, 449–456.
9.
“Specification of unfired fusion welded pressure vessels.” (1988). BS 5500, British Standards Institution, London, U.K.
10.
Taylor, T. E., and Polychroni, G. Y.(1983). “Optimum reinforcement of uniform thickness cone-cylinder intersections in vessels subject to internal pressure.”Int. J. Pressure Vessels and Piping, 11, 33–46.
11.
Teng, J. G.(1994). “Cone-cylinder intersection under internal pressure: Axisymmetric failure.”J. Engrg. Mech., ASCE, 120(9), 1896–1912.
12.
Teng, J. G.(1995). “Cone-cylinder intersection under internal pressure: Nonsymmetric buckling.”J. Engrg. Mech., ASCE, 121(12), 1298–1305.
13.
Teng, J. G.(1996). “Elastic buckling of cone-cylinder intersection under localized circumferential compression.”Engrg. Struct., 18(1), 41–48.
14.
Teng, J. G. (1998). “Collapse strength of complex metal shell intersections by the effective area method.”J. Pressure Vessel Technol., 120, in press.
15.
Teng, J. G., and Rotter, J. M.(1989a). “Elastic-plastic large deflection analysis of axisymmetric shells.”Comp. and Struct., 31(2), 211–235.
16.
Teng, J. G., and Rotter, J. M.(1989b). “Plastic collapse of restrained steel silo hoppers.”J. Constructional Steel Res., 14, 135–158.
17.
Teng, J. G., and Rotter, J. M.(1991a). “Collapse behavior and strength of steel silo transition junctions. I: Collapse mechanics.”J. Struct. Engrg., ASCE, 117(12), 3587–3604.
18.
Teng, J. G., and Rotter, J. M.(1991b). “Collapse behavior and strength of steel silo transition junctions. II: Parametric study.”J. Struct. Engrg., ASCE, 117(12), 3605–3622.
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Information
Published In
Journal of Engineering Mechanics
Volume 124 • Issue 9 • September 1998
Pages: 971 - 980
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Sep 1, 1998
Published in print: Sep 1998
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