Paper Title: Buckle Propagation of Sandwich Pipes Under External Pressure
C An, College of Safety and Ocean Engineering, China University of Petroleum (Beijing), Beijing, China
B Q Liu, Ocean Engineering Program, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
T T Li, College of Safety and Ocean Engineering, China University of Petroleum (Beijing), China
G M Fu, School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, China
M L Duan, College of Safety and Ocean Engineering, China University of Petroleum (Beijing), Beijing, China
Buckle propagation of local collapse appearing in the damaged pipes is one of the failure modes that are of particular interest for deepwater application. The local collapse can propagate along the pipeline for long distances in both directions when the external pressure magnitude is up to the propagation pressure. In this paper, the buckle propagation pressure of sandwich pipes (SP) with different material properties and geometric characteristics is investigated by numerical simulation using Python programming language based on general finite element code. The results of the pressure history data obtained are verified by comparing those published previously. The effect of material properties, geometric characteristics and adhesion conditions on the propagation pressure are analyzed.
Transactions RINA, Vol 162, Part A1, International Journal Maritime Engineering, Jan - Mar 2020
DOI No: 10.3940/rina.ijme.2020.a1.536a
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