Loading and Contact Stress Analysis on the Thread Teeth in Tubing and Casing Premium Threaded Connection
Joint Authors
Xu, Honglin
Shi, Taihe
Zhang, Zhi
Shi, Bin
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-10-13
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Loading and contact stress distribution on the thread teeth in tubing and casing premium threaded connections are of great importance for design optimization, pretightening force control, and thread failure prevention.
This paper proposes an analytical method based on the elastic mechanics.
This is quite different from other papers, which mainly rely on finite element analysis.
The differential equation of load distribution on the thread teeth was established according to equal pitch of the engaged thread after deformation and solved by finite difference method.
Furthermore, the relation between load acting on each engaged thread and mean contact stress on its load flank is set up based on the geometric description of thread surface.
By comparison, this new analytical method with the finite element analysis for a modified API 177.8 mm premium threaded connection is approved.
Comparison of the contact stress on the last engaged thread between analytical model and FEM shows that the accuracy of analytical model will decline with the increase of pretightening force after the material enters into plastic deformation.
However, the analytical method can meet the needs of engineering to some extent because its relative error is about 6.2%~18.1% for the in-service level of pretightening force.
American Psychological Association (APA)
Xu, Honglin& Shi, Taihe& Zhang, Zhi& Shi, Bin. 2014. Loading and Contact Stress Analysis on the Thread Teeth in Tubing and Casing Premium Threaded Connection. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1044147
Modern Language Association (MLA)
Xu, Honglin…[et al.]. Loading and Contact Stress Analysis on the Thread Teeth in Tubing and Casing Premium Threaded Connection. Mathematical Problems in Engineering No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-1044147
American Medical Association (AMA)
Xu, Honglin& Shi, Taihe& Zhang, Zhi& Shi, Bin. Loading and Contact Stress Analysis on the Thread Teeth in Tubing and Casing Premium Threaded Connection. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1044147
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1044147