TY - JOUR
T1 - Three-dimensional pipeline element formulation for global buckling analysis of submarine pipelines with sleeper
AU - Ning, Jihui
AU - Lin, Tong
AU - Liu, Siwei
AU - Bai, Rui
AU - Huang, Wei
N1 - Funding Information:
The corresponding author would like to express his gratitude to the Natural Science Foundation of Guangdong Province, China (No. 2021A1515011734 ), and the Basic and Applied Basic Research Foundation of Guangdong Province (No. 2019A1515110969 ), and the second author would like to express his gratitude to the National Natural Science Foundation of China through the project (Grant No. 52008410 ) and the Hong Kong SAR Government on the project “Second-order direct analysis for the design of steel members with irregular cross-sections (PolyU 15203121/22E)”.
Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/7
Y1 - 2023/7
N2 - Submarine pipelines can utilize sleepers to control global buckling location, which mitigates potential risks under high temperature and pressure. However, pipelines with sleepers require execution in three-dimensional space and experience lateral buckling modes. As such, this paper proposes a 3D pipeline element for lateral buckling analysis, building on previous 2D element formulations. This new element considers non-linear pipe-soil interactions, thermal expansion, axial load, initial imperfections, large deflection, and other major factors that affect lateral buckling. The derivations of the 3D pipeline element are provided in detail, and the numerical analysis procedure is elaborated. To validate the accuracy and efficiency of the proposed 3D pipeline element, several examples are presented.
AB - Submarine pipelines can utilize sleepers to control global buckling location, which mitigates potential risks under high temperature and pressure. However, pipelines with sleepers require execution in three-dimensional space and experience lateral buckling modes. As such, this paper proposes a 3D pipeline element for lateral buckling analysis, building on previous 2D element formulations. This new element considers non-linear pipe-soil interactions, thermal expansion, axial load, initial imperfections, large deflection, and other major factors that affect lateral buckling. The derivations of the 3D pipeline element are provided in detail, and the numerical analysis procedure is elaborated. To validate the accuracy and efficiency of the proposed 3D pipeline element, several examples are presented.
KW - 3D pipeline element
KW - Global buckling
KW - High temperature high pressure
KW - Nonlinear pipe-soil interactions
KW - Sleeper
KW - Unburied subsea pipelines
UR - http://www.scopus.com/inward/record.url?scp=85152944412&partnerID=8YFLogxK
U2 - 10.1016/j.marstruc.2023.103428
DO - 10.1016/j.marstruc.2023.103428
M3 - Journal article
AN - SCOPUS:85152944412
SN - 0951-8339
VL - 90
JO - Marine Structures
JF - Marine Structures
M1 - 103428
ER -