Characterization of J-R curves of a HSLA-steel and an Alloy 52 DMW with SE(T) specimens

S. Lindqvist; T. Seppänen

doi:10.1016/j.prostr.2018.12.247

Characterization of J-R curves of a HSLA-steel and an Alloy 52 DMW with SE(T) specimens

Research output: Contribution to journal › Article in a proceedings journal › Scientific › peer-review

Abstract

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.

Original language	English
Pages (from-to)	1195-1200
Number of pages	6
Journal	Procedia Structural Integrity
Volume	13
DOIs	https://doi.org/10.1016/j.prostr.2018.12.247
Publication status	Published - 2018
MoE publication type	A4 Article in a conference publication
Event	22nd European Conference on Fracture, ECF 2018 - Belgrade, Serbia Duration: 25 Aug 2018 → 26 Aug 2018

Funding

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 ).

Keywords

Constraint
Dissimilar metal weld
Fracture toughness
J-R curve
SE(T)
Tearing resistance

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10.1016/j.prostr.2018.12.247Licence: CC BY-NC-ND

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title = "Characterization of J-R curves of a HSLA-steel and an Alloy 52 DMW with SE(T) specimens",

abstract = "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.",

keywords = "Constraint, Dissimilar metal weld, Fracture toughness, J-R curve, SE(T), Tearing resistance",

author = "S. Lindqvist and T. Sepp{\"a}nen",

note = "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: {\textcopyright} 2018 The Authors.; 22nd European Conference on Fracture, ECF 2018 ; Conference date: 25-08-2018 Through 26-08-2018",

year = "2018",

doi = "10.1016/j.prostr.2018.12.247",

language = "English",

volume = "13",

pages = "1195--1200",

journal = "Procedia Structural Integrity",

issn = "2452-3216",

publisher = "Elsevier",

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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 -

Characterization of J-R curves of a HSLA-steel and an Alloy 52 DMW with SE(T) specimens

Abstract

Funding

Keywords

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