TY - GEN
T1 - GRE pipeline installation procedures - A field case study
AU - Khalaf, A.
AU - Al-Tartoor, Y.
AU - Seibi, A. C.
AU - Karrech, A.
PY - 2010
Y1 - 2010
N2 - Field layout Glass Reinforced Epoxy (GRE) pipeline is generally handled by unskilled workers with limited or no background of the mechanics of pipes subjected to large deformation. This paper, therefore, presents working envelops for field operators to avoid any potential GRE pipe failure during installation through finite element modeling using ANSYS. The finite element models consist of various pipe sizes subjected to typical loading conditions similar to field pipeline layout. The models were used to estimate the pipe deflection and the induced stresses. The analysis was based on the assumption that the pipeline acts as a cantilever beam. The internal normal force, shear force, and bending moment were obtained for each section along the pipe length under study. The maximum normal stress was calculated and compared to the failure strength of GRE for various lifting scenarios. A sensitivity analysis on the various parameters affecting the structural integrity of the pipeline was also performed. It was found that the threshold lifting height causing potential pipe failure is 2 m for all pipe sizes. Moreover, the results showed that the minimum threshold height increases for smaller pipe sizes.
AB - Field layout Glass Reinforced Epoxy (GRE) pipeline is generally handled by unskilled workers with limited or no background of the mechanics of pipes subjected to large deformation. This paper, therefore, presents working envelops for field operators to avoid any potential GRE pipe failure during installation through finite element modeling using ANSYS. The finite element models consist of various pipe sizes subjected to typical loading conditions similar to field pipeline layout. The models were used to estimate the pipe deflection and the induced stresses. The analysis was based on the assumption that the pipeline acts as a cantilever beam. The internal normal force, shear force, and bending moment were obtained for each section along the pipe length under study. The maximum normal stress was calculated and compared to the failure strength of GRE for various lifting scenarios. A sensitivity analysis on the various parameters affecting the structural integrity of the pipeline was also performed. It was found that the threshold lifting height causing potential pipe failure is 2 m for all pipe sizes. Moreover, the results showed that the minimum threshold height increases for smaller pipe sizes.
UR - https://www.scopus.com/pages/publications/77953208073
U2 - 10.1115/PVP2009-78017
DO - 10.1115/PVP2009-78017
M3 - Conference contribution
AN - SCOPUS:77953208073
SN - 9780791843703
T3 - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
SP - 287
EP - 295
BT - Proceedings of the ASME Pressure Vessels and Piping Conference 2009
T2 - 2009 ASME Pressure Vessels and Piping Conference, PVP 2009
Y2 - 26 July 2009 through 30 July 2009
ER -