Based on a tee joint, the simplified creep design methods of ASME code, elastic-perfectly plastic (EPP) analysis of Code Case N-861 (CC N-861) and the inelastic analysis by isochronous stress strain (ISS) curve, were evaluated and compared to nonlinear finite element creep analysis (FECA). Results indicate that both EPP and FECA lead to a greater inelastic strain than ISS curve-based results. By contrast, the ISS-based analysis induces a smaller usage fraction (damage) than FECA due to the underestimated inelastic strain. In addition, the smallest usage fraction (damage) is obtained by using EPP analysis of CC N-861 in which case the remarkable bending strain is involved.

Issue Section:
Materials and Fabrication
Keywords:
Elevated temperature analysis, Inelastic analysis, Design
Topics:
Creep, Design methodology, Pressure, Stress, Temperature

References

1.
Hayner
,
G. O.
,
Bratton
,
R. L.
,
Wright
,
R. N.
,
Windes
,
W. E.
,
Totemeier
,
T. C.
,
Moore
,
K. A.
,
Rittenhouse
,
P. L.
,
Wilson
,
D. F.
,
Ren
,
W.
,
Corwin
,
W. R.
,
Burchell
,
T. D.
,
Klett
,
J. W.
,
Nanstad
,
R. K.
,
Snead
,
L. L.
,
Katoh
,
Y.
,
Swindeman
,
R. W.
, and
McGreevy
,
T. D.
,
2005
, “
Next Generation Nuclear Plant Materials Research and Development Program Plan
,” Idaho National Laboratory (INL), Idaho Falls, ID, Report No.
39009143
.
2.
Gong
,
J. G.
, and
Xuan
,
F. Z.
,
2017
, “
Notch Behavior of Components Under the Stress Controlled Creep-Fatigue Condition: Weakening or Strengthening?
,”
ASME J. Pressure Vessel Technol.
,
139
(
1
), p.
011407
.
Google Scholar
Crossref
Search ADS
 
3.
ASME,
2015
, “
ASME Boiler and Pressure Vessel Code, III-5, High Temperature Reactors
,” American Society of Mechanical Engineers, New York.
4.
ASME,
2015
, “
ASME Boiler and Pressure Vessel Code Cases: Nuclear Components
,” American Society of Mechanical Engineers, New York.
5.
Shen
,
X. L.
, and
Xuan
,
F. Z.
,
2016
, “
Impact of Stress Multi-Axial Effect on 316 Stainless Steel Creep Design Margin
,”
J. Mech. Strength
,
38
(
5
), pp.
1087
–
1092
(in Chinese).
6.
Koves
,
W.
, and
Zhao
,
M.
,
2013
, “
On Simplified Inelastic Method Using Material's Isochronous Stress–Strain Data for Creep Analysis
,”
ASME J. Pressure Vessel Technol.
,
135
(
3
), p.
031202
.
Google Scholar
Crossref
Search ADS
 
7.
Zhao
,
M.
, and
Koves
,
W.
,
2007
, “
Applications of Isochronous Data in Creep Analysis
,”
ASME
Paper No. PVP2007-26095.
8.
Koves
,
W.
, and
Zhao
,
M.
,
2009
, “
Comparison of the Isochronous Method and a Time-Explicit Model for Creep Analysis
,”
ASME
Paper No. PVP2008-61579.
9.
Zhang
,
J. W.
,
Wang
,
G. Z.
,
Xuan
,
F. Z.
, and
Tu
,
S. T.
,
2015
, “
Effect of Stress Dependent Creep Ductility on Creep Crack Growth Behaviour of Steels for Wide Range of C*
,”
Mater. High Temp.
,
32
(
4
), pp.
369
–
376
.
Google Scholar
Crossref
Search ADS
 
10.
Xuan
,
F. Z.
,
Chen
,
J. J.
,
Wang
,
Z. D.
, and
Tu
,
S. T.
,
2009
, “
Time-Dependent Deformation and Fracture of Multi-Material Systems at High Temperature
,”
Int. J. Pressure Vessels Piping
,
86
(
9
), pp.
604
–
615
.
Google Scholar
Crossref
Search ADS
 
11.
Naumenko
,
K.
, and
Kostenko
,
Y.
,
2009
, “
Structural Analysis of a Power Plant Component Using a Stress-Range-Dependent Creep-Damage Constitutive Model
,”
Mater. Sci. Eng. A
,
510–511
, pp.
169
–
174
.
Google Scholar
Crossref
Search ADS
 
12.
Xuan
,
F. Z.
,
Li
,
P. N.
, and
Tu
,
S. T.
,
2006
, “
Limit Load Analysis for the Piping Branch Junctions Under In-Plane Moment
,”
Int. J. Mech. Sci.
,
48
(
4
), pp.
460
–
467
.
Google Scholar
Crossref
Search ADS
 
13.
SIMULIA,
2011
, “
ABAQUS 6.11 User's Manual
,” DASSAULT SYSTEMES, Providence, RI.
14.
Rieth
,
M.
,
Falkenstein
,
A.
,
Graf
,
P.
,
Heger
,
S.
,
Jäntsch
,
U.
,
Klimiankou
,
M.
,
Materna-Morris
,
E.
, and
Zimmermann
,
H.
,
2004
, “
Creep of the Austenitic Steel AISI 316 L(N)-Experiments and Models
,” Forschungszentrum Karlsruhe Gmbh, Karlsruhe, Germany.
15.
Wen
,
J. F.
,
Tu
,
S. T.
,
Gao
,
X. L.
, and
Reddy
,
J. N.
,
2013
, “
Simulations of Creep Crack Growth in 316 Stainless Steel Using a Novel Creep-Damage Model
,”
Eng. Fract. Mech.
,
98
, pp.
169
–
184
.
Google Scholar
Crossref
Search ADS
 
16.
Lee
,
S. J.
, and
Chang
,
Y. S.
,
2015
, “
Crack Initiation and Growth Simulation for CRDM Nozzles by Extended Finite Element Method
,”
ASME
Paper No. PVP2015-45172.
17.
Gorash
,
Y.
, and
Chen
,
H.
,
2013
, “
Creep-Fatigue Life Assessment of Cruciform Weldments Using the Linear Matching Method
,”
Int. J. Pressure Vessels Piping
,
104
, pp.
1
–
13
.
Google Scholar
Crossref
Search ADS
 
Copyright © 2017 by ASME
You do not currently have access to this content.