Abstract

This article investigates numerically welding residual stress distributions of a tube with J-groove weld in control rod drive mechanisms of a pressurized nuclear reactor vessel. Parametric study is performed for the effect of the tube location, tube dimensions, and material's yield strength. It is found that residual stresses increase with increasing the inclination angle of the tube, and the up-hill side is the most critical. For thicker tube, residual stresses decrease. For material's yield strength, both axial and hoop residual stresses tend to increase with increasing the yield strength of Alloy 600. Furthermore, axial stresses tend to increase with increasing yield strength of Alloys 82/182.

References

1.
Anderson
,
M. T.
,
Rudland
,
D.
,
Zhang
,
T.
, and
Wilkowski
,
G.
,
2008
, “
Final Report - Inspection Limit Confirmation for Upper Head Penetration Nozzle Cracking
,” Pacific Northwest National Laboratory, Richland, WA, Report No.
PNNL-17763
.https://digital.library.unt.edu/ark:/67531/metadc926607/
2.
Rudland
,
D.
,
Chen
,
Y.
,
Zhang
,
T.
,
Wilkowski
,
G.
,
Broussard
,
J.
, and
White
,
G.
,
2007
, “
Comparison of Welding Residual Stress Solutions for Control Rod Drive Mechanism Nozzles
,”
ASME
Paper No. PVP2007-26045.10.1115/PVP2007-26045
3.
Cheng
,
W.
,
Rudland
,
D.
,
Wilkowski
,
G.
, and
Norris
,
W.
,
2005
, “
Effects of Weld Geometry on Residual Stress and Crack Driving Force for Center Hole Control Rod Drive Mechanism nozzles - Part I Weld Residual Stress
,”
ASME
Paper No. PVP2005-7107710.1115/PVP2005-71077.
4.
Ogawa
,
N.
,
Hojo
,
K.
,
Shirako
,
H.
, and
Sera
,
T.
,
2013
, “
Residual Stress Evaluation of Dissimilar Weld Joint Using Mock-Up Models of Bottom Mounted Instrument Nozzle
,”
ASME
Paper No. PVP2013-97866.10.1115/PVP2013-97866
5.
Coules
,
H. E.
, and
Smith
,
D. J.
,
2018
, “
Measurement of the Residual Stresses in a PWR Control Rod Drive Mechanism Nozzle
,”
Nucl. Eng. Des.
,
333
, pp.
16
24
.10.1016/j.nucengdes.2018.04.002
6.
Yaghi
,
A.
,
Hyde
,
T. H.
,
Becker
,
A. A.
,
Sun
,
W.
, and
Williams
,
J. A.
,
2006
, “
Residual Stress Simulation in Thin and Thick-Walled Stainless Steel Pipe Welds Including Pipe Diameter Effects
,”
Int. J. Pressure Vessels Piping
,
83
(
11–12
), pp.
864
874
.10.1016/j.ijpvp.2006.08.014
7.
Brickstad
,
B.
, and
Josefson
,
B. L.
,
1998
, “
A Parametric Study of Residual Stresses in Multi-Pass Butt-Welded Stainless Steel Pipes
,”
Int. J. Pressure Vessels Piping
,
75
(
1
), pp.
11
25
.10.1016/S0308-0161(97)00117-8
8.
Broussard
,
J. E.
,
Hunt
,
E. S.
, and
White
,
G. A.
,
2004
, “
FEA Welding Residual Stress and Fracture Mechanics Model for Nozzles With J-Groove Attachment Welds: Methodology and Application
,”
ASME
Paper No. PVP2004-2557.10.1115/PVP2004-2557
9.
Song
,
T.-K.
,
Bae
,
H.-Y.
,
Kim
,
Y.-J.
,
Lee
,
K.-S.
, and
Park
,
C.-Y.
,
2008
, “
Sensitivity Analyses of Finite Element Method for Estimating Residual Stress of Dissimilar Metal Multi-Pass Weldment in Nuclear Power Plant
,”
Trans. Korean Soc. Mech. Eng. A
,
32
(
9
), pp.
770
781
.10.3795/KSME-A.2008.32.9.770
10.
Song
,
T. K.
,
Bae
,
H. R.
,
Kim
,
Y. J.
, and
Lee
,
K. S.
,
2010
, “
Numerical Investigation on Welding Residual Stresses in a PWR Pressurizer Safety/Relief Nozzle
,”
Fatigue Fract. Eng. Mater. Struct.
,
33
(
11
), pp.
689
702
.10.1111/j.1460-2695.2010.01480.x
11.
Bae
,
H. Y.
,
Kim
,
Y. J.
,
Kim
,
J. H.
,
Lee
,
S. H.
,
Lee
,
K. S.
, and
Park
,
C. Y.
,
2014
, “
Three-Dimensional Finite Element Welding Residual Stress Analysis of Penetration Nozzles: I - Sensitivity of Analysis Variables
,”
Int. J. Pressure Vessels Piping
,
114–115
, pp.
1
15
.10.1016/j.ijpvp.2013.11.006
12.
Combustion Engineering Inc.
,
1981
, “
Analytical Report for Korea Nuclear Unit No. 5 Reactor Vessel
,” Combustion Engeering Inc., Stamford, CT, Report No. CENC-1466, pp.
1403
1488
.
13.
Special metals corporation
,
2008
, “
Inconel Alloy 600
,” Standard No. SMC-207.
14.
American Society of Mechanical Engineers
,
2008
, “
ASME B&PV Code Section II, Part B – Materials, Nonferrous Material Specifications
,”
ASME Paper No. SB-167.
15.
American Society of Mechanical Engineers
,
2007
, “
ASME B&PV Code Section II, Part C – Materials, Specifications for Welding Rods, Electrodes and Filler Metals
,”
ASME Paper No. Sfa-5.11/Sfa-5.11m.
16.
American Society of Mechanical Engineers
,
1998
, “
ASME B&PV Code Section II, Part A - Materials, Ferrous Material Specifications
,”
ASME Paper No. SA-409/SA-409m.
17.
American Society of Mechanical Engineers
,
1998
, “
ASME B&PV Code Section II, Part A - Materials, Ferrous Material Specifications
,”
ASME Paper No. SA-508/SA-508m.
18.
Dassault Systemes
,
2011
,
ABAQUS Version 6.11.1 User's Manual
,
Dassault Systemes Simulia Corp.
, Johnston,
RI
.
19.
Dong
,
P.
, and
Brust
,
F. W.
,
2000
, “
Welding Residual Stresses and Effects on Fracture in Pressure Vessel and Piping Components: A Millennium Review and Beyond
,”
ASME J. Pressure Vessel Technol.
,
122
(
3
), pp.
329
338
.10.1115/1.556189
20.
Kiyoshima
,
S.
,
Deng
,
D.
,
Ogawa
,
K.
,
Yanagida
,
N.
, and
Saito
,
K.
,
2009
, “
Influences of Heat Source Model on Welding Residual Stress and Distortion in a Multi-Pass J-Groove Joint
,”
Comput. Mater. Sci.
,
46
(
4
), pp.
987
995
.10.1016/j.commatsci.2009.05.002
You do not currently have access to this content.