An investigation on residual stress and fatigue life assessment of T-shape welded joints

被引：26

作者：

Samadi, Farzaneh ^{[1
]}

Mourya, Jeetendra ^{[2
]}

Wheatley, Greg ^{[2
]}

Khan, Mohammed Nizam ^{[3
]}

Nejad, Reza Masoudi ^{[4
]}

Branco, Ricardo ^{[5
]}

Macek, Wojciech ^{[6
]}

机构：

[1] Semnan Univ, Fac Engn, Dept Mat, Semnan, Iran

[2] James Cook Univ, Coll Sci & Engn, Townsville, Qld 4811, Australia

[3] Fiji Natl Univ, Coll Engn Sci & Technol, Derrick Campus, Samabula, Fiji

[4] Univ Elect Sci & Technol China, Sch Mech & Elect Engn, Chengdu 611731, Peoples R China

[5] Univ Coimbra, Dept Mech Engn, CEMMPRE, Coimbra, Portugal

[6] Gdansk Univ Technol, Fac Mech Engn & Ship Technol, 11-12 Gabriela Narutowicza, PL-80233 Gdansk, Poland

来源：

ENGINEERING FAILURE ANALYSIS | 2022年 / 141卷

关键词：

Residual stress; Fatigue life; Multi-pass weld; Bisalloy; 80; Strain gauge; PREDICTION;

D O I：

10.1016/j.engfailanal.2022.106685

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper aims to quantitatively evaluate the residual stress and fatigue life of T-type welded joints with a multi-pass weld in different direction. The main research objectives of the experi-mental test were to test the residual stress by changing direction along with multiple wielding passes and determine the fatigue life of the welded joints. The result shows that compressive residual stress increases in the sample gradually from single-pass weld to double and triple-pass weld. Moreover, the fatigue life of the specimen also gradually improves with an increasing number of welding passes. Performing multi-pass welding in different directions affects the ma-terial's residual stress and fatigue life, which is an essential factor to consider for assuring the strength of the welded joint.

引用

页数：11

共 48 条

[1] Quantification of residual stresses in multi-pass welds using neutron diffraction [J].