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Sensitivity of plastic response of defective pipeline girth welds to the stress-strain behaviour of base and weld metal

Stijn Hertelé (UGent) , Wim De Waele (UGent) , Rudi Denys (UGent) and Matthias Verstraete (UGent)
(2013) JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME. 135(1).
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Abstract
One of the key parameters influencing the acceptability of a pipeline girth weld defect subjected to remote plastic deformation is the strength mismatch between weld and base metal. However, no single definition exists for weld strength mismatch, as it can be defined either on the basis of yield stress, ultimate tensile stress or any intermediate flow stress. To investigate the relevance of such definitions, the authors have performed a series of analyses of curved wide plate tests, using a validated parametric finite element model. The results indicate that, whereas yield stress overmatch determines crack driving force for small plastic strains, ultimate tensile stress overmatch is the more important parameter for advanced plastic strains and determines the eventual failure mode. Further, the strain capacity and exact crack driving force curve are additionally determined by uniform elongation and crack growth resistance.
Keywords
pipeline girth weld, DESIGN, strain capacity, strength mismatch, crack driving force

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Citation

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MLA
Hertelé, Stijn, et al. “Sensitivity of Plastic Response of Defective Pipeline Girth Welds to the Stress-Strain Behaviour of Base and Weld Metal.” JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME, vol. 135, no. 1, 2013, doi:10.1115/1.4007049.
APA
Hertelé, S., De Waele, W., Denys, R., & Verstraete, M. (2013). Sensitivity of plastic response of defective pipeline girth welds to the stress-strain behaviour of base and weld metal. JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME, 135(1). https://doi.org/10.1115/1.4007049
Chicago author-date
Hertelé, Stijn, Wim De Waele, Rudi Denys, and Matthias Verstraete. 2013. “Sensitivity of Plastic Response of Defective Pipeline Girth Welds to the Stress-Strain Behaviour of Base and Weld Metal.” JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME 135 (1). https://doi.org/10.1115/1.4007049.
Chicago author-date (all authors)
Hertelé, Stijn, Wim De Waele, Rudi Denys, and Matthias Verstraete. 2013. “Sensitivity of Plastic Response of Defective Pipeline Girth Welds to the Stress-Strain Behaviour of Base and Weld Metal.” JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME 135 (1). doi:10.1115/1.4007049.
Vancouver
1.
Hertelé S, De Waele W, Denys R, Verstraete M. Sensitivity of plastic response of defective pipeline girth welds to the stress-strain behaviour of base and weld metal. JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME. 2013;135(1).
IEEE
[1]
S. Hertelé, W. De Waele, R. Denys, and M. Verstraete, “Sensitivity of plastic response of defective pipeline girth welds to the stress-strain behaviour of base and weld metal,” JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME, vol. 135, no. 1, 2013.
@article{3217415,
  abstract     = {{One of the key parameters influencing the acceptability of a pipeline girth weld defect subjected to remote plastic deformation is the strength mismatch between weld and base metal. However, no single definition exists for weld strength mismatch, as it can be defined either on the basis of yield stress, ultimate tensile stress or any intermediate flow stress. To investigate the relevance of such definitions, the authors have performed a series of analyses of curved wide plate tests, using a validated parametric finite element model. The results indicate that, whereas yield stress overmatch determines crack driving force for small plastic strains, ultimate tensile stress overmatch is the more important parameter for advanced plastic strains and determines the eventual failure mode. Further, the strain capacity and exact crack driving force curve are additionally determined by uniform elongation and crack growth resistance.}},
  articleno    = {{011402-1}},
  author       = {{Hertelé, Stijn and De Waele, Wim and Denys, Rudi and Verstraete, Matthias}},
  issn         = {{0892-7219}},
  journal      = {{JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME}},
  keywords     = {{pipeline girth weld,DESIGN,strain capacity,strength mismatch,crack driving force}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{8}},
  title        = {{Sensitivity of plastic response of defective pipeline girth welds to the stress-strain behaviour of base and weld metal}},
  url          = {{http://doi.org/10.1115/1.4007049}},
  volume       = {{135}},
  year         = {{2013}},
}
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