弯曲载荷作用下特殊螺纹接头有限元分析

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中图分类号：TE931.2 文献标识码：B 文章编号 ：1003-0514（2025）05-0032-05

Finite element analysis of premium connection under bending load

Hu Zhilil，LiXiaobing¹，Zhang Chuigui1，WuDan1，LiJianliang¹，Zhuo Zhao 1 ，Gao Lianxin² （1.Hengyang Valin Steel Tube Co.，Ltd.，Hengyang 4210O1，Hunan，China; 2.East China University Of Science and Technology，Shanghai 2OO237，China）

Abstract：For 2D axisymmetric model can not directly apply bending load in finite element analysis of premium conection，amethodoffiniteelementanalysisof premiumconnectionunderbendingloadispresented，andtheanalysis model is established byAbaqus，the stressdistributionof premiumconection under the load conditions of make-up，makeup+bending， make-up+bending+tension，make-up+bending+tension+internal pressure were analyzed.The results show thathebendingloadhasinfluenceonboththejointstrengthandthesealing propertyof thetheconnection，butithalitle influence on the sealing propertyand great influenceonthe joint strength.In the evaluation test according toAPI RP 5C5 standard，teendingstre isquvalenttotetensileadompreiveload，hichisooonseativetoevaluatetesaling performance.

Key Words：premium connection；bending load；contact stress；sealing performance； finite element analysis

在斜井、水平井、大位移井中，油套管除了受到轴向拉压载荷、内外压力外，还会受到弯曲载荷的作用[1-4。（剩余5584字）