A Numerical Study on Prediction of Collapse Pressure of UOE Pipes
|
|
|||||||||||
Bibliographic Details
| Author(s): |
Jiwoon Yi
(Korean Institute of Bridge and Structural Engineers, Seoul, Korea)
Soo-Chang Kang (POSCO, Incheon, Korea) Jinkyo F. Choo (Konkuk University, Seoul, Korea) Do Been Kim (Chunil Engineering, Seoul, Korea) Wonsuk Park (Mokpo National University, Mokpo, Korea) Hyun-Moo Koh (Seoul National University, Seoul, Korea) |
||||
|---|---|---|---|---|---|
| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Tomorrow’s Megastructures, Nantes, France, 19-21 September 2018 | ||||
| Published in: | IABSE Symposium Nantes 2018 | ||||
|
|||||
| Page(s): | S25-9 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/nantes.2018.s25-9 | ||||
| Abstract: |
UOE pipe is widely used for thick-walled offshore pipes thanks to its productivity. UOE pipe is obtained through successive plastic forming stages which exert changes in the material strain- stress behaviour due to hardening and Bauschinger effects. Ovality and residual stress of complex aspect are also induced by the repetition of plastic forming and elastic spring back. These factors make it difficult to predict the collapse pressure of the pipe at the design stage. However the accurate prediction of the collapse pressure is essential for cost and time efficiency considering that sometimes the total length of the pipeline runs over several thousands of kilometers. In this study, finite element analysis is conducted to track the material properties all along the forming process and the collapse pressure is assessed using data mapping technique. Finally, the influence of the extent of pipe expansion on collapse pressure of the UOE pipe is examined. |
||||
| Keywords: |
residual stress finite element simulation material property UOE pipe forming ovality collapse pressure
|
||||