Numerical Simulation of Submarine Pipeline Upheaval Buckling with Different Imperfection Styles

摘要：

　　Upheaval buckling is likely to damage HT/HP submarine pipeline in service.The simple calculation formulas developed so far cannot give out accurate results and cannot satisfy the more rigid design requirements.Initial imperfection brings the biggest uncertainty on this problem.To investigate its influence, pipeline upheaval buckling has been simulated by numerical calculation technologyFEM in this paper.By a lot of simulation some factors related to initial imperfection are investigated.Simulating results show that pipeline imperfection shape has large influence on upheaval buckling critical load and thats why the analytical methods with simple initial imperfection assumption sometimes cannot give out accurate results.

关键词： Pipeline Upheaval buckling Numerical simulation Influence factor

作者: Guomin Sun Xiaguang Zeng Menglan Duan Xiaoyu Che Shuangni Tan

作者单位: Offshore Oil Engineering Co,Ltd.Tianjin,China Offshore Oil/Gas Research Center,China University of Petroleum,Beijing,China Department of Mechanics and Engineering Science,Fudan University,Shanghai 200433,China

会议类型: 国际会议

会议名称: SUT International Conterence on Subsea Technology and Deepwater Engineering(SUT 水下技术和深水工程国际会议)

会议地点: 深圳

会议语种:英文

页码: 319-325

在线出版日期: 2012-09-25（万方平台首次上网日期，不代表论文的发表时间）