In this paper, the J-R curves of two cracks (A508 HAZ crack 2 and A508/Alloy52Mb interface crack 3) located at the weakest region in an Alloy52M dissimilar metal welded joint (DMWJ) for connecting pipe-nozzle of nuclear pressure vessel have been measured by using single edge-notched bend (SENB) specimens with different crack depths a/W (different constraint). Based on the modified T-stress constraint parameter τ*, the equations of constraint-dependent J-R curves for the crack 2 and crack 3 were obtained. The predicted J-R curves using different constraint equations derived from the three pairs of crack growth amount all agree with the experimental J-R curves. The results show that the modified T-stress approach for obtaining constraint-dependent J-R curves of homogeneous materials can also be used for the DMWJs with highly heterogeneous mechanical properties (local strength mismatches) in nuclear power plants. The use of the constraint-dependent J-R curves may increase the accuracy of structural integrity design and assessment for the DMWJs of nuclear pressure vessels.
Issue Section:
Materials and Fabrication
References
1.
Zhu
, X. K.
, and Leis
, B. N.
, 2006
, “Bending Modified J-Q Theory and Crack-Tip Constraint Quantification
,” Int. J. Fract.
, 141
(1–2
), pp. 115
–134
.10.1007/s10704-006-0068-52.
Joyce
, J. A.
, Hackett
, E. M.
, and Roe
, C.
, 1993
, “Effect of Crack Depth and Mode of Loading on the J–R Curve Behavior of a High-Strength Steel
,” Constraint Effects in Fracture, ASTM STP 1171
, American Society for Testing and Materials
, Philadelphia, PA
, pp. 239
–263
.3.
Joyce
, J. A.
, and Link
, R. E.
, 1995
, “Effects of Constraint on Upper Shelf Fracture Toughness
,” Fatigue and Fracture Mechanics: 26th Volume, ASTM STP 1256
, American Society for Testing and Materials
, Philadelphia, PA
, pp. 142
–177
.10.1520/STP16383S4.
Joyce
, J. A.
, and Link
, R. E.
, 1997
, “Application of Two Parameter Elastic-Plastic Fracture Mechanics to Analysis of Structures
,” Eng. Fract. Mech.
, 57
(4
), pp. 431
–446
.10.1016/S0013-7944(97)00030-15.
Neimitz
, A.
, Dziob
, I.
, and Galkiewicz
, J.
, 2004
, “A Study of Stable Crack Growth Using Experimental Methods, Finite Elements and Fractography
,” Eng. Fract. Mech.
, 71
(9–10
), pp. 1325
–1355
.10.1016/S0013-7944(03)00169-36.
Kirk
, M. T.
, Koppenhoefer
, K. C.
, and Shih
, C. F.
, 1993
, “Effect of Constraint on Specimen Dimensions Needed to Obtain Structurally Relevant Toughness Measures
,” Constraint Effects in Fracture, ASTM STP 1171
, American Society for Testing and Materials
, Philadelphia, PA
, pp. 79
–104
.10.1520/STP18024S7.
Towers
, O. L.
, and Garwood
, S. J.
, 1986
, “Influence of Crack Depth on Resistance Curves for Three Point Bend Specimens in HY130
,” Fracture Mechanics: 7th Volume, ASTM STP 905
, American Society for Testing and Materials
, Philadelphia, PA
, pp. 454
–484
.10.1520/STP17412S8.
Zhu
, X. K.
, and Leis
, B. N.
, 2006
, “Application of Constraint Corrected J–R Curves to Fracture Analysis of Pipelines
,” ASME J. Pressure Vessel Technol.
, 128
(4
), pp. 581
–589
.10.1115/1.23495719.
O'Dowd
, N. P.
, and Shih
, C. F.
, 1991
, “Family of Crack-Tip Fields Characterized by a Triaxiality Parameter-І. Structure of Fields
,” J. Mech. Phys. Solids
, 39
(8
), pp. 989
–1015
.10.1016/0022-5096(91)90049-T10.
O'Dowd
, N. P.
, and Shih
, C. F.
, 1992
, “Family of Crack-Tip Fields Characterized by a Triaxiality Parameter-ІІ. Fracture Applications
,” J. Mech. Phys. Solids
, 40
(5
), pp. 939
–963
.10.1016/0022-5096(92)90057-911.
O'Dowd
, N. P.
, and Shih
, C. F.
, 1994
, “Two-Parameter Fracture Mechanics: Theory and Applications
,” Fracture Mechanics: 24th Volume, ASTM STP 1207
, American Society for Testing and Materials
, Philadelphia, PA
, pp. 21
–47
.10.1520/STP13698S12.
Yang
, S.
, Chao
, Y. J.
, and Sutton
, M. A.
, 1993
, “Higher Order Asymptotic Crack Tip Fields in a Power-Law Hardening Material
,” Eng. Fract. Mech.
, 45
(1
), pp. 1
–20
.10.1016/0013-7944(93)90002-A13.
Chao
, Y. J.
, Yang
, S.
, and Sutton
, M. A.
, 1994
, “On the Fracture of Solids Characterized by One or Two Parameters: Theory and Practice
,” J. Mech. Phys. Solids
, 42
(4
), pp. 629
–647
.10.1016/0022-5096(94)90055-814.
Betegón
, C.
, and Hancock
, J. W.
, 1991
, “Two-Parameter Characterization of Elastic-Plastic Crack-Tip Fields
,” ASME J. Appl. Mech.
, 58
(1
), pp. 104
–110
.10.1115/1.289713515.
Wang
, Y. Y.
, and Parks
, D. M.
, 1995
, “Limit of J-T Characterization of Elastic-Plastic Crack-Tip Fields
,” Constraint Effects in Fracture Theory and Application: Second Volume, ASTM STP 1244
, American Society for Testing and Materials
, Philadelphia, PA
, pp. 43
–67
.16.
Chao
, Y. J.
, and Zhu
, X. K.
, 1998
, “J-A2 Characterization of Crack-Tip Fields: Extent of J-A2 Dominance and Size Requirements
,” Int. J. Fract.
, 89
(3
), pp. 285
–307
.10.1023/A:100748791137617.
Chao
, Y. J.
, Zhu
, X. K.
, Kim
, Y.
, Lam
, P. S.
, Pechersky
, M. J.
, and Morgan
, M. J.
, 2004
, “Characterization of Crack-Tip Fields and Constraints for Bending Specimens Under Large-Scale Yielding
,” Int. J. Fract.
, 127
(3
), pp. 283
–302
.10.1023/B:FRAC.0000036849.12397.6c18.
Zhou
, D. W.
, 2011
, “Measurement and Modelling of R-Curves for Low-Constraint Specimens
,” Eng. Fract. Mech.
, 78
(3
), pp. 605
–622
.10.1016/j.engfracmech.2010.08.01919.
Williams
, M. L.
, 1957
, “On the Stress Distribution at the Base of a Stationary Crack
,” ASME J. Appl. Mech.
, 24
(1
), pp. 111
–114
.20.
Larsson
, S. G.
, and Carlsson
, A. J.
, 1973
, “Influence of Non-Singular Stress Terms and Specimen Geometry on Small-Scale Yielding at Crack Tips in Elastic-Plastic Materials
,” J. Mech. Phys. Solids
, 21
(4
), pp. 263
–277
.10.1016/0022-5096(73)90024-021.
Rice
, J. R.
, 1974
, “Limitations to the Small Scale Yielding Approximation for Crack Tip Plasticity
,” J. Mech. Phys. Solids
, 22
(1
), pp. 17
–26
.10.1016/0022-5096(74)90010-622.
Bilby
, B. A.
, Cardew
, G. E.
, and Goldthorpe
, M. R.
, 1986
, “A Finite Element Investigation of the Effect of Specimen Geometry on the Fields of Stress and Strain at the Tips of Stationary Cracks
,” Size Effects in Fracture, Proceedings of a Seminar Held at RAE Farnborough
, Farnborough, UK, Dec.12–15, Institution of Mechanical Engineers, London, UK
.23.
Wang
, X.
, 2003
, “Elastic T-Stress Solutions for Semi-Elliptical Surface Cracks in Finite Thickness Plates
,” Eng. Fract. Mech.
, 70
(6
), pp. 731
–756
.10.1016/S0013-7944(02)00081-424.
Parks
, D. M.
, 1992
, “Advances in Characterization of Elastic-Plastic Crack-Tip Fields
,” Topics in Fracture and Fatigue
, A. S.
Argon
, ed., Springer Verlag
, Berlin, Germany, pp. 59
–98
.10.1007/978-1-4612-2934-6_225.
Betegón
, C.
, and Peñuelas
, I.
, 2006
, “A Constraint Based Parameter for Quantifying the Crack Tip Stress Fields in Welded Joints
,” Eng. Fract. Mech.
, 73
(13
), pp. 1865
–1877
.10.1016/j.engfracmech.2006.02.01226.
Al-Ani
, A. M.
, and Hancock
, J. W.
, 1991
, “J-Dominance of Short Cracks in Tension and Bending
,” J. Mech. Phys. Solids
, 39
(1
), pp. 23
–43
.10.1016/0022-5096(91)90029-N27.
Du
, Z. Z.
, and Hancock
, J. W.
, 1991
, “The Effect of Non-Singular Stresses on Crack-Tip Constraint
,” J. Mech. Phys. Solids
, 39
(4
), pp. 555
–567
.10.1016/0022-5096(91)90041-L28.
Wang
, Y. Y.
, 1993
, “On the Two-Parameter Characterization of Elastic-Plastic Crack Front Fields in Surface Cracked Plates
,” Constraint Effects in Fracture, ASTM STP 1171
, American Society for Testing and Materials
, Philadelphia, PA
, pp. 120
–138
.10.1520/STP18026S29.
Zhang
, Z. L.
, Thaulow
, C.
, and Ødegård
, J.
, 2000
, “A Complete Gurson Model Approach for Ductile Fracture
,” Eng. Fract. Mech.
, 67
(2
), pp. 155
–168
.10.1016/S0013-7944(00)00055-230.
Nyhus
, B.
, Zhang
, Z. L.
, and Thaulow
, C.
, 2002
, “Normalisation of Material Crack Resistance Curves by the T-Stress
,” Proceeding of 14th European Conference on Fracture
, Cracow, Poland
, Sept. 8–13, pp. 85
–94
.31.
Rodriguez
, C.
, Belzunce
, F. J.
, and Garcia
, T. E.
, 2013
, “Constraint Dependence of the Fracture Toughness of Reduced Activation Ferritic-Martensitic Eurofer Steel Plates
,” Eng. Fract. Mech.
, 103
(1
), pp. 60
–68
.10.1016/j.engfracmech.2012.05.00332.
Wang
, J.
, Wang
, G. Z.
, Xuan
, F. Z.
, and Tu
, S. T.
, 2013
, “Derivation of Constraint-Dependent J-R Curves Based on Modified T-Stress Parameter and GTN Model for a Low-Alloy Steel
,” Int. J. Fract.
, 183
(2
), pp. 155
–168
.10.1007/s10704-013-9884-633.
Wang
, H. T.
, Wang
, G. Z.
, Xuan
, F. Z.
, and Tu
, S. T.
, 2013
, “Fracture Mechanism of a Dissimilar Metal Welded Joint in Nuclear Power Plant
,” Eng. Failure Anal.
, 28
(1
), pp. 134
–148
.10.1016/j.engfailanal.2012.10.00534.
Wang
, H. T.
, Wang
, G. Z.
, Xuan
, F. Z.
, Liu
, C. J.
, and Tu
, S. T.
, 2012
, “Local Mechanical Properties and Microstructures of Alloy52M Dissimilar Metal Welded Joint Between A508 Ferritic Steel and 316L Stainless Steel
,” Adv. Mater. Res.
, 509
(2
), pp. 103
–110
.10.4028/www.scientific.net/AMR.509.10335.
Wang
, H. T.
, Wang
, G. Z.
, Xuan
, F. Z.
, and Tu
, S. T.
, 2013
, “An Experimental Investigation of Local Fracture Resistance and Crack Growth Paths in a Dissimilar Metal Welded Joint
,” Mater. Des.
, 44
(2
), pp. 179
–189
.10.1016/j.matdes.2012.07.06736.
ASTM E1820-08a
, 2008
, Standard Test Method for Measurement of Fracture Toughness
, American Society for Testing and Materials
, Philadelphia, PA
.37.
Hancock
, J. W.
, Reuter
, W. G.
, and Parks
, D. M.
, 1993
, “Constraint and Toughness Parameterized by T
,” Constraint Effects in Fracture, ASTM STP 1171
, American Society for Testing and Materials
, Philadelphia, PA
, pp. 21
–40
.10.1520/STP18021S38.
Zhu
, X. K.
, and Jang
, S. K.
, 2001
, “J-R Curves Corrected by Load-Independent Constraint Parameter in Ductile Crack Growth
,” Eng. Fract. Mech.
, 68
(3
), pp. 285
–301
.10.1016/S0013-7944(00)00100-439.
Shih
, C. F.
, 1983
, “Tables of Hutchinson-Rice-Rosengren Singular Field Quantities
,” Materials Research Laboratory, Brown University, Providence, Rhode Island, Report No. MRL E-147.40.
Yoshida
, 1990
, “Fracture Toughness of Weld Metals in Steel Piping for Nuclear Power Plants
,” Int. J. PressureVessels Piping
, 43
(1–3
), pp. 273
–284
.10.1016/0308-0161(90)90107-SCopyright © 2015 by ASME
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