TY - JOUR
T1 - Characterization of J-R curves of a HSLA-steel and an Alloy 52 DMW with SE(T) specimens
AU - Lindqvist, S.
AU - Seppänen, T.
N1 - Funding Information:
The results presented in this study originate from a European collaboration proMect called M8/T,META/ funded by the European &ommission (E&) within its th Framework Program and concluded in January 2 15. The writing of this paper was funded by proMect /2ST (long term operational aspects of structural integrity) part of SAF,R2 1 (The Finnish Research Programme on 1uclear Power Plant Safety 2 15 - 2 1 ).
Publisher Copyright:
© 2018 The Authors.
PY - 2018
Y1 - 2018
N2 - The J-R curves determined with high constraint specimens can be overly conservative for structural integrity analyses of cracks in pipes and pressure vessels. In this investigation, J-R curves are determined experimentally with low-constraint single edge tension (SE(T)) specimens of a HSLA-steel and an Alloy 52 dissimilar metal weld (DMW) and the quality of the data is analysed. The results show that the CANMET crack length prediction gives a good fit to the measured data within the validity limits of the prediction, the stress in the remaining ligament does not exceed the true tensile strength, and the increase in the J-R curve due to loss of constraint was predicted analytically.
AB - The J-R curves determined with high constraint specimens can be overly conservative for structural integrity analyses of cracks in pipes and pressure vessels. In this investigation, J-R curves are determined experimentally with low-constraint single edge tension (SE(T)) specimens of a HSLA-steel and an Alloy 52 dissimilar metal weld (DMW) and the quality of the data is analysed. The results show that the CANMET crack length prediction gives a good fit to the measured data within the validity limits of the prediction, the stress in the remaining ligament does not exceed the true tensile strength, and the increase in the J-R curve due to loss of constraint was predicted analytically.
KW - Constraint
KW - Dissimilar metal weld
KW - Fracture toughness
KW - J-R curve
KW - SE(T)
KW - Tearing resistance
UR - http://www.scopus.com/inward/record.url?scp=85064611745&partnerID=8YFLogxK
U2 - 10.1016/j.prostr.2018.12.247
DO - 10.1016/j.prostr.2018.12.247
M3 - Article in a proceedings journal
AN - SCOPUS:85064611745
SN - 2452-3216
VL - 13
SP - 1195
EP - 1200
JO - Procedia Structural Integrity
JF - Procedia Structural Integrity
T2 - 22nd European Conference on Fracture, ECF 2018
Y2 - 25 August 2018 through 26 August 2018
ER -