Fatigue life prediction of casing welded pipes by using the extended finite element method

被引：9

作者：

Vulicevic, Ljubica Lazic ^{[1
]}

Rajic, Aleksandar ^{[1
]}

Grbovic, Aleksandar ^{[2
]}

Sedmak, Aleksandar ^{[2
]}

Sarkocevic, Zivce ^{[3
]}

机构：

[1] High Tech Sch Profess Studies, Dorda Stratimirov 39, Zrenjanin, Serbia

[2] Fac Mech Engn, Kraljice Marije 16, Belgrade, Serbia

[3] High Tech Sch Profess Studies, Zvecan, Serbia

来源：

FRATTURA ED INTEGRITA STRUTTURALE | 2016年 / 36期

关键词：

XFEM; Seam casing pipes; Axial surface crack; Fatigue crack growth; Remaining life;

D O I：

10.3221/IGF-ESIS.36.05

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The extended finite element (XFEM) method has been used to simulate fatigue crack growth in casing pipe, made of API J55 steel by high-frequency welding, in order estimate its structural integrity and life. Based on the critical value of stress intensity factor K-Ic, measured in different regions of welded joint, the crack was located in the base metal as the region with the lowest resistance to crack initiation and propagation. The XFEM was first applied to the 3 point bending specimens to verify numerical results with the experimental ones. After successful verification, the XFEM was used to simulate fatigue crack growth, position axially in the pipe, and estimate its remaining life.

引用

页码：46 / 54

页数：9

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