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Fatigue life improvement of threaded pipe couplings

Jeroen Van Wittenberghe (UGent) , Patrick De Baets (UGent) , Wim De Waele (UGent) and Jan De Pauw (UGent)
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Abstract
In this study it is demonstrated experimentally that the fatigue life of threaded pipe couplings can be improved by providing a more uniform load distribution over the threads of the coupling. The load distribution was changed by applying both global and local stiffness reductions to the coupling. The obtained results were evaluated using finite element simulations of 2D axisymmetric models. To study the validity of these models a critical comparison was made with a full 3D model that accounts for non-linearities in material and contact properties.
Keywords
NPT, pipe, BSPT, fatigue, experiment, 2D, finite element, threaded connections, coupling, 3D

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Please use this url to cite or link to this publication:

Chicago
Van Wittenberghe, Jeroen, Patrick De Baets, Wim De Waele, and Jan De Pauw. 2010. “Fatigue Life Improvement of Threaded Pipe Couplings.” In 2010 Proceedings of the ASME Pressure Vessel and Piping Conference. ASME.
APA
Van Wittenberghe, J., De Baets, P., De Waele, W., & De Pauw, J. (2010). Fatigue life improvement of threaded pipe couplings. 2010 Proceedings of the ASME pressure vessel and piping conference. Presented at the ASME 2010 Pressure Vessels and Piping conference (2010 ASME PVP/K-PVP) : Pressure vessel technologies for energy challenge, ASME.
Vancouver
1.
Van Wittenberghe J, De Baets P, De Waele W, De Pauw J. Fatigue life improvement of threaded pipe couplings. 2010 Proceedings of the ASME pressure vessel and piping conference. ASME; 2010.
MLA
Van Wittenberghe, Jeroen, Patrick De Baets, Wim De Waele, et al. “Fatigue Life Improvement of Threaded Pipe Couplings.” 2010 Proceedings of the ASME Pressure Vessel and Piping Conference. ASME, 2010. Print.
@inproceedings{1016755,
  abstract     = {In this study it is demonstrated experimentally that the fatigue life of threaded pipe couplings can be improved by providing a more uniform load distribution over the threads of the coupling. The load distribution was changed by applying both global and local stiffness reductions to the coupling. The obtained results were evaluated using finite element simulations of 2D axisymmetric models. To study the validity of these models a critical comparison was made with a full 3D model that accounts for non-linearities in material and contact properties.},
  articleno    = {PVP2010-25687},
  author       = {Van Wittenberghe, Jeroen and De Baets, Patrick and De Waele, Wim and De Pauw, Jan},
  booktitle    = {2010 Proceedings of the ASME pressure vessel and piping conference},
  isbn         = {9780791838785},
  keyword      = {NPT,pipe,BSPT,fatigue,experiment,2D,finite element,threaded connections,coupling,3D},
  language     = {eng},
  location     = {Bellevue, WA, USA},
  pages        = {8},
  publisher    = {ASME},
  title        = {Fatigue life improvement of threaded pipe couplings},
  year         = {2010},
}