The purpose of this work is to investigate the elastic stress and deformation of pressurized cylinders with a hillside nozzle. Two full-scale test models were designed and fabricated specially for the test. A 3D finite element numerical analysis was also performed. The elastic stress distribution, stress concentration range, deformation characteristics, and stress concentration factor were obtained. The elastic results show that the distinct stress concentration occurs on the hillside-nozzle intersection, and the intersection shrinks in the longitudinal section of cylinder, while a bulge appears in the transverse section. The range of stress concentration of the hillside-nozzle intersection in the transverse section of the cylinder is larger than that in the longitudinal section and the stress concentration factor declines with the increment of the angle $β$. The results will serve as the basis for developing a design guideline for pressurized cylinders with various angles of the hillside nozzle.

1.
Tabone
,
C. J.
, 1987, “
Pressure-Plus-Moment Limit-Load Analysis for a Cylindrical Shell Nozzle
,”
ASME J. Pressure Vessel Technol.
0094-9930,
109
, pp.
297
301
.
2.
Meshon
,
J. L.
,
Mokhtarian
,
K.
,
Ranjan
,
G. V.
, and
Rodabaugh
,
E. C.
, 1984, “
Local Stresses in Cylindrical Shells due to External Loadings on Nozzles-Supplement to WRC Bulletin No. 107
,” Welding Research No. 297.
3.
Sang
,
Z. F.
,
Xue
,
L. P.
,
Lin
,
Y. J.
, and
Widera
,
G. E. O.
, 2002, “
Limit and Burst Pressure for a Cylindrical Shell Intersection With Intermediate Diameter Ratio
,”
Int. J. Pressure Vessels Piping
0308-0161,
79
, pp.
341
349
.
4.
Updike
,
D. P.
, and
Kalnins
,
A.
, 1998, “
Tensile Plastic Instability of Axisymmetric Pressure Vessels
,”
ASME J. Pressure Vessel Technol.
0094-9930,
120
, pp.
6
11
.
5.
Ascough
,
J.
,
Malalasekera
,
W. M. G.
, and
Rusu-Casandra
,
A.
, 1996, “
Stress Analysis of Hemispherical Shells With Single Nonradially Penetrated Nozzles
,”
Eng. Struct.
0141-0296,
18
, pp.
894
900
.
6.
James
,
J. X.
,
Benedict
,
C.
, and
Sun
,
B. K.
, 2000, “
Local Pressure Stresses on Lateral Pipe-Nozzle With Various Angles of Intersection
,”
Nucl. Eng. Des.
0029-5493,
199
, pp.
335
340
.
7.
ASME Boiler and Pressure Vessel Code
,
2004 ed.
, Sec. III, Div. 1,
American Society of Mechanical Engineers
,
New York
.
8.
Mershon
,
J. L.
, 1970, “
Interpretive Report on Oblique Nozzle Connections in Pressure Vessel Heads and Shells Under Internal Pressure Loading
,” Welding Research Bulletin No. 153.
9.
Hazlett
,
T.
, 1990, “
Three Dimensional Parametric Finite Element Analyses of Hillside Connections in Cylinders Subject to Internal Pressure
,”
Proceedings, 1990 ASME Pressure Vessels and Piping Conference, The Pressure Vessel and Piping Division of ASME
, pp.
141
145
.
10.
Skopinsky
,
V. N.
, 1993, “
Numerical Stress Analysis of Intersecting Cylindrical Shells
,”
ASME J. Pressure Vessel Technol.
0094-9930,
115
, pp.
275
282
.
11.
Rodabaugh
,
E. C.
, 2000, “
Code Rules for Internal Pressure Design of Isolated Nozzles in Cylindrical Vessels With d∕D⩽1.0
,” Welding Research Bulletin No. 451.
12.
ANSYS, 2002, “
Ansys 6.1 Program Documentation
,” SAS IP, Inc.
13.
Decock
,
J.
, 1973, “
Determination of Stress Concentration Factors and Fatigue Assessment of Flush and Extruded Nozzles in Welded Pressure Vessels
,”
Proceedings of the 2nd Int. Conf. Pressure Vessel Technology
,
ASME
,
NY
, pp.
821
835
.
14.
Mokhtarian
,
K.
, and
Endicott
,
J. S.
, 1991, “
Stresses in Intersecting Cylinders Subjected to Pressure
,” Welding Research Bulletin No. 368.
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