Fracture mechanics analysis of heterogeneous welds : validation of a weld homogenisation approach
- Author
- Stijn Hertelé (UGent) , Noel O'Dowd, Koen Van Minnebruggen (UGent) , Matthias Verstraete (UGent) and Wim De Waele (UGent)
- Organization
- Abstract
- Flaw assessments assume homogeneous material properties, but welds are heterogeneous. The authors have developed a method to address heterogeneity in the estimation of crack driving force. This paper presents a numerical validation of the proposed approach. Weld heterogeneity is characterized in three pipeline girth welds by means of hardness mapping. The resulting distributions are input into a finite element model of a clamped SE(T) specimen. Following, crack tip opening displacement responses of heterogeneous welds are compared with predictions. The approach is found to strongly simplify analyses involving heterogeneous welds while maintaining an acceptable level of accuracy with respect to load.
- Keywords
- heterogeneity, CTOD, girth weld, hardness, SE(T)
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-4431463
- MLA
- Hertelé, Stijn, et al. “Fracture Mechanics Analysis of Heterogeneous Welds : Validation of a Weld Homogenisation Approach.” 20TH EUROPEAN CONFERENCE ON FRACTURE, edited by Zhiliang Zhang et al., vol. 3, Elsevier, 2014, pp. 1322–29, doi:10.1016/j.mspro.2014.06.214.
- APA
- Hertelé, S., O’Dowd, N., Van Minnebruggen, K., Verstraete, M., & De Waele, W. (2014). Fracture mechanics analysis of heterogeneous welds : validation of a weld homogenisation approach. In Z. Zhang, B. Skallerud, C. Thaulow, E. Østby, & J. He (Eds.), 20TH EUROPEAN CONFERENCE ON FRACTURE (Vol. 3, pp. 1322–1329). https://doi.org/10.1016/j.mspro.2014.06.214
- Chicago author-date
- Hertelé, Stijn, Noel O’Dowd, Koen Van Minnebruggen, Matthias Verstraete, and Wim De Waele. 2014. “Fracture Mechanics Analysis of Heterogeneous Welds : Validation of a Weld Homogenisation Approach.” In 20TH EUROPEAN CONFERENCE ON FRACTURE, edited by Zhiliang Zhang, Bjørn Skallerud, Christian Thaulow, Erling Østby, and Jianying He, 3:1322–29. Amsterdam, The Netherlands: Elsevier. https://doi.org/10.1016/j.mspro.2014.06.214.
- Chicago author-date (all authors)
- Hertelé, Stijn, Noel O’Dowd, Koen Van Minnebruggen, Matthias Verstraete, and Wim De Waele. 2014. “Fracture Mechanics Analysis of Heterogeneous Welds : Validation of a Weld Homogenisation Approach.” In 20TH EUROPEAN CONFERENCE ON FRACTURE, ed by. Zhiliang Zhang, Bjørn Skallerud, Christian Thaulow, Erling Østby, and Jianying He, 3:1322–1329. Amsterdam, The Netherlands: Elsevier. doi:10.1016/j.mspro.2014.06.214.
- Vancouver
- 1.Hertelé S, O’Dowd N, Van Minnebruggen K, Verstraete M, De Waele W. Fracture mechanics analysis of heterogeneous welds : validation of a weld homogenisation approach. In: Zhang Z, Skallerud B, Thaulow C, Østby E, He J, editors. 20TH EUROPEAN CONFERENCE ON FRACTURE. Amsterdam, The Netherlands: Elsevier; 2014. p. 1322–9.
- IEEE
- [1]S. Hertelé, N. O’Dowd, K. Van Minnebruggen, M. Verstraete, and W. De Waele, “Fracture mechanics analysis of heterogeneous welds : validation of a weld homogenisation approach,” in 20TH EUROPEAN CONFERENCE ON FRACTURE, Trondheim, Norway, 2014, vol. 3, pp. 1322–1329.
@inproceedings{4431463,
abstract = {{Flaw assessments assume homogeneous material properties, but welds are heterogeneous. The authors have developed a method to address heterogeneity in the estimation of crack driving force. This paper presents a numerical validation of the proposed approach. Weld heterogeneity is characterized in three pipeline girth welds by means of hardness mapping. The resulting distributions are input into a finite element model of a clamped SE(T) specimen. Following, crack tip opening displacement responses of heterogeneous welds are compared with predictions. The approach is found to strongly simplify analyses involving heterogeneous welds while maintaining an acceptable level of accuracy with respect to load.}},
author = {{Hertelé, Stijn and O'Dowd, Noel and Van Minnebruggen, Koen and Verstraete, Matthias and De Waele, Wim}},
booktitle = {{20TH EUROPEAN CONFERENCE ON FRACTURE}},
editor = {{Zhang, Zhiliang and Skallerud, Bjørn and Thaulow, Christian and Østby, Erling and He, Jianying}},
issn = {{2211-8128}},
keywords = {{heterogeneity,CTOD,girth weld,hardness,SE(T)}},
language = {{eng}},
location = {{Trondheim, Norway}},
pages = {{1322--1329}},
publisher = {{Elsevier}},
title = {{Fracture mechanics analysis of heterogeneous welds : validation of a weld homogenisation approach}},
url = {{http://doi.org/10.1016/j.mspro.2014.06.214}},
volume = {{3}},
year = {{2014}},
}
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