Open AccessFailure behaviour of preloaded API line pipe threaded connections
Author(s) -
Jonas Seys,
Koenraad Roeygens,
Jeroen Van Wittenberghe,
Timothy Galle,
Patrick De Baets,
Wim De Waele
Publication year - 2011
Publication title -
sustainable construction and design
Language(s) - English
Resource type - Journals
eISSN - 2295-9092
pISSN - 2032-7471
DOI - 10.21825/scad.v2i3.20539
Subject(s) - envelope (radar) , structural engineering , coupling (piping) , work (physics) , connection (principal bundle) , bending , materials science , line (geometry) , point (geometry) , internal pressure , engineering , mechanical engineering , composite material , mathematics , geometry , telecommunications , radar
This paper reports on numerical and experimental work concerning the fatigue behaviour andsealing capacity of threaded pipe connections (1” API Line Pipe). Numerical simulations are performedusing Abaqus®in combination with ThreadGen©. The fatigue life of a thick-walled standard coupling isdetermined using a four-point bending test. The corresponding S-N curve is compared to results of previouswork on thin-walled specimens. It can be concluded that the standard thick-walled connection has a higherfatigue life than thin-walled ones. In future work, the prediction of fatigue life using established multi-axialcriteria will be evaluated. Further, the sealing capacity of several couplings will be investigated bysubmitting them to different combinations of internal pressure and axial force. Hereto, a specific test setupis designed. The results will then be presented as a test load envelope