Effect of Ovality Length on Collapse Strength of Imperfect Sandwich Pipes Due to Local Buckling
The effect of ovality length on imperfect sandwich pipes is investigated using the finite element method in the scenario of local buckling under external pressure. First, the finite element model of the imperfect sandwich pipelines is established in ANSYS and is validated by comparing the results fr...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-12-01
|
| Series: | Journal of Marine Science and Engineering |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2077-1312/10/1/12 |
| _version_ | 1827664937657303040 |
|---|---|
| author | Ruoxuan Li Bai-Qiao Chen C. Guedes Soares |
| author_facet | Ruoxuan Li Bai-Qiao Chen C. Guedes Soares |
| author_sort | Ruoxuan Li |
| collection | DOAJ |
| description | The effect of ovality length on imperfect sandwich pipes is investigated using the finite element method in the scenario of local buckling under external pressure. First, the finite element model of the imperfect sandwich pipelines is established in ANSYS and is validated by comparing the results from numerical simulation with those from experiments. Then, the effect of ovality features on the collapse strength of the sandwich pipes is studied. At last, based on the calculation results from 1200 cases, a prediction equation is proposed to represent the relationship between collapse strength and ovality length of imperfect sandwich pipes. Good agreement is achieved between the proposed equation and the calculation results, leading to the conclusion that the proposed simplified model can be an efficient tool in the evaluation of the local collapse strength of subsea sandwich pipes under external pressure. |
| first_indexed | 2024-03-10T01:12:40Z |
| format | Article |
| id | doaj.art-e04173c1fa8e46aba3324c29b129665d |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T01:12:40Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-e04173c1fa8e46aba3324c29b129665d2023-11-23T14:15:34ZengMDPI AGJournal of Marine Science and Engineering2077-13122021-12-011011210.3390/jmse10010012Effect of Ovality Length on Collapse Strength of Imperfect Sandwich Pipes Due to Local BucklingRuoxuan Li0Bai-Qiao Chen1C. Guedes Soares2Centre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, PortugalCentre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, PortugalCentre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, PortugalThe effect of ovality length on imperfect sandwich pipes is investigated using the finite element method in the scenario of local buckling under external pressure. First, the finite element model of the imperfect sandwich pipelines is established in ANSYS and is validated by comparing the results from numerical simulation with those from experiments. Then, the effect of ovality features on the collapse strength of the sandwich pipes is studied. At last, based on the calculation results from 1200 cases, a prediction equation is proposed to represent the relationship between collapse strength and ovality length of imperfect sandwich pipes. Good agreement is achieved between the proposed equation and the calculation results, leading to the conclusion that the proposed simplified model can be an efficient tool in the evaluation of the local collapse strength of subsea sandwich pipes under external pressure.https://www.mdpi.com/2077-1312/10/1/12subsea pipelinesandwich pipecollapse strengthinitial ovality |
| spellingShingle | Ruoxuan Li Bai-Qiao Chen C. Guedes Soares Effect of Ovality Length on Collapse Strength of Imperfect Sandwich Pipes Due to Local Buckling Journal of Marine Science and Engineering subsea pipeline sandwich pipe collapse strength initial ovality |
| title | Effect of Ovality Length on Collapse Strength of Imperfect Sandwich Pipes Due to Local Buckling |
| title_full | Effect of Ovality Length on Collapse Strength of Imperfect Sandwich Pipes Due to Local Buckling |
| title_fullStr | Effect of Ovality Length on Collapse Strength of Imperfect Sandwich Pipes Due to Local Buckling |
| title_full_unstemmed | Effect of Ovality Length on Collapse Strength of Imperfect Sandwich Pipes Due to Local Buckling |
| title_short | Effect of Ovality Length on Collapse Strength of Imperfect Sandwich Pipes Due to Local Buckling |
| title_sort | effect of ovality length on collapse strength of imperfect sandwich pipes due to local buckling |
| topic | subsea pipeline sandwich pipe collapse strength initial ovality |
| url | https://www.mdpi.com/2077-1312/10/1/12 |
| work_keys_str_mv | AT ruoxuanli effectofovalitylengthoncollapsestrengthofimperfectsandwichpipesduetolocalbuckling AT baiqiaochen effectofovalitylengthoncollapsestrengthofimperfectsandwichpipesduetolocalbuckling AT cguedessoares effectofovalitylengthoncollapsestrengthofimperfectsandwichpipesduetolocalbuckling |