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Failure behaviour of preloaded API line pipe threaded connections

Jonas Seys (UGent) , Koenraad Roeygens (UGent) , Jeroen Van Wittenberghe (UGent) , Timothy Galle (UGent) , Patrick De Baets (UGent) and Wim De Waele (UGent)
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Abstract
This paper reports on numerical and experimental work concerning the fatigue behaviour and sealing capacity of threaded pipe connections (1” API Line Pipe). Numerical simulations are performed using Abaqus® in combination with ThreadGen©. The fatigue life of a thick-walled standard coupling is determined using a four-point bending test. The corresponding S-N curve is compared to results of previous work on thin-walled specimens. It can be concluded that the standard thick-walled connection has a higher fatigue life than thin-walled ones. In future work, the prediction of fatigue life using established multi-axial criteria will be evaluated. Further, the sealing capacity of several couplings will be investigated by submitting them to different combinations of internal pressure and axial force. Hereto, a specific test setup is designed. The results will then be presented as a test load envelope.
Keywords
sealing limit, test load envelope, four-point bending, fatigue, Threaded connections, API, finite element analysis

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

Chicago
Seys, Jonas, Koenraad Roeygens, Jeroen Van Wittenberghe, Timothy Galle, Patrick De Baets, and Wim De Waele. 2011. “Failure Behaviour of Preloaded API Line Pipe Threaded Connections.” In Sustainable Construction and Design, ed. Jeroen Van Wittenberghe, 2:407–415. Ghent, Belgium: Ghent University, Laboratory Soete.
APA
Seys, Jonas, Roeygens, K., Van Wittenberghe, J., Galle, T., De Baets, P., & De Waele, W. (2011). Failure behaviour of preloaded API line pipe threaded connections. In J. Van Wittenberghe (Ed.), SUSTAINABLE CONSTRUCTION AND DESIGN (Vol. 2, pp. 407–415). Presented at the Sustainable Construction and Design 2011 (SCAD), Ghent, Belgium: Ghent University, Laboratory Soete.
Vancouver
1.
Seys J, Roeygens K, Van Wittenberghe J, Galle T, De Baets P, De Waele W. Failure behaviour of preloaded API line pipe threaded connections. In: Van Wittenberghe J, editor. SUSTAINABLE CONSTRUCTION AND DESIGN. Ghent, Belgium: Ghent University, Laboratory Soete; 2011. p. 407–15.
MLA
Seys, Jonas, Koenraad Roeygens, Jeroen Van Wittenberghe, et al. “Failure Behaviour of Preloaded API Line Pipe Threaded Connections.” Sustainable Construction and Design. Ed. Jeroen Van Wittenberghe. Vol. 2. Ghent, Belgium: Ghent University, Laboratory Soete, 2011. 407–415. Print.
@inproceedings{1178778,
  abstract     = {This paper reports on numerical and experimental work concerning the fatigue behaviour and sealing capacity of threaded pipe connections (1{\textquotedblright} API Line Pipe). Numerical simulations are performed using Abaqus{\textregistered} in combination with ThreadGen{\textcopyright}. The fatigue life of a thick-walled standard coupling is determined using a four-point bending test. The corresponding S-N curve is compared to results of previous work on thin-walled specimens. It can be concluded that the standard thick-walled connection has a higher fatigue life than thin-walled ones. In future work, the prediction of fatigue life using established multi-axial criteria will be evaluated. Further, the sealing capacity of several couplings will be investigated by submitting them to different combinations of internal pressure and axial force. Hereto, a specific test setup is designed. The results will then be presented as a test load envelope.},
  author       = {Seys, Jonas and Roeygens, Koenraad and Van Wittenberghe, Jeroen and Galle, Timothy and De Baets, Patrick and De Waele, Wim},
  booktitle    = {SUSTAINABLE CONSTRUCTION AND DESIGN},
  editor       = {Van Wittenberghe, Jeroen},
  isbn         = {9789490726010},
  issn         = {2032-7471},
  keyword      = {sealing limit,test load envelope,four-point bending,fatigue,Threaded connections,API,finite element analysis},
  language     = {eng},
  location     = {Ghent, Belgium},
  number       = {3},
  pages        = {407--415},
  publisher    = {Ghent University, Laboratory Soete},
  title        = {Failure behaviour of preloaded API line pipe threaded connections},
  volume       = {2},
  year         = {2011},
}