Upheaval Buckling Analysis of Buried Offshore Pipelines under High Temperature and High Pressure

被引：0
|
作者：
Liu Peng [1 ]
Wu Shiyuan [1 ]
Kan Le [1 ]
机构：
[1] Southwest Petr Univ, Chengdu 610500, Sichuan, Peoples R China
来源：
ADVANCED CONSTRUCTION TECHNOLOGIES | 2014年 / 919-921卷
关键词：
Buried Offshore Pipelines; HT/HP; Upheaval Buckling; Coupled Fluid-Structure; Initial Imperfection;
D O I：
10.4028/www.scientific.net/AMR.919-921.292
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Nonlinear finite element upheaval buckling model of buried offshore pipelines under HT/HP is built using ABAQUS. The petroleum is defined as uniform flow; temperature field of offshore pipelines produced in the process of petroleum transportation is obtained by heat transfer analysis; offshore pipelines are buried in trench of sandy seabed, interaction between seabed and offshore pipelines is defined as friction, seabed interaction with offshore pipelines will limit the movement of offshore pipelines; coupled fluid-structure analysis for three phase model of oil-pipe-soil is conducted to obtain stress under HT/HP. Initial imperfection of pipeline is introduced to calculate upheaval buckling of buried offshore pipeline under HT/HP. Through numerical analysis, the axial force of pipelines under HT/HP is obtained and thus resulted in upheaval buckling.
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页码：292 / 295
页数：4
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