Analysis of Influence to the Connect and Seal Ability of Tubing Connection of Inner Pressures

摘要：

　　To know the stress distribution of tubing connections with varied inner pressures for further understanding of the influence of pressures to the connection and seal ability,finite element model of API tubing connection was established and the Von Mises stresses and contact pressures of tubing connection was analyze by full make-up torque and varied inner pressures with nonlinear finite element method.It was found that the contact pressures and stresses on engagement threads may be increased with limited inner pressure.Meanwhile,stresses of engagement threads on both ends increased more sharply than others.And plastic deformation even breakage of engagement threads may occur if the inner pressure exceeds 70MPa.

关键词： tubing connection connect ability seal ability pressure finite element

作者: Yihua Dou Yinping Cao Fuxiang Zhang Xiangtong Yang

作者单位: Xian Shiyou University,Xian,Shaanxi,China,710065 Tarim Oilfield Company,CNPC,Korla,Xinjiang,China,841000

会议类型: 国际会议

会议名称: the 2012 2nd International Conference on Frontiers of Manufacturing Science and Measuring Technology (第二届制造科学与检测技术国际会议(ICFMM 2012))

会议地点: 西安

会议语种:英文

页码: 790-793

在线出版日期: 2012-06-12（万方平台首次上网日期，不代表论文的发表时间）