摘要：Comprehension on the bucking failure of corroded subsea pipelines is important. Those corrosion defects usually exhibit complex geometries and will complicate the buckling failure behavior of subsea pipeline under external pressure. In this paper, a semi-analytical approach named homotopy analysis method (HAM) is introduced to investigate the buckling failure of subsea pipeline with three idealized corrosion defects. The proposed solutions are proven to be capable of giving accurate and efficient predictions in comparison with finite element result as well as analytical results. Numerical examples indicate that corrosion shapes have pronounced effect on the buckling pressure as well as buckling mode of pipeline with severe corrosion defects and those cases should be carefully concerned in the structural integrity assessment of subsea pipelines.

关键字：Subsea pipeline; Corrosion defect; Buckling pressure; Homotopy analysis method; Finite element method

ISSN号：0029-8018

卷、期、页：卷: 234

发表日期：2021-08-15

影响因子：3.067600

期刊分区（SCI为中科院分区）：三区

收录情况：SCIE（科学引文索引网络版）,地学领域高质量科技期刊分级目录（国外T1）,EI（工程索引）

发表期刊名称：OCEAN ENGINEERING

参与作者：臧志鹏,张恩勇,曹静

通讯作者：刘昊,高莫狄,马尚

第一作者：陈严飞,董绍华,敖川

论文类型：期刊论文

论文概要：陈严飞,董绍华,臧志鹏,敖川,刘昊,高莫狄,马尚,张恩勇,曹静，Buckling analysis of subsea pipeline with idealized corrosion defects using homotopy analysis method，OCEAN ENGINEERING，2021，卷: 234

论文题目：Buckling analysis of subsea pipeline with idealized corrosion defects using homotopy analysis method