Influence of welding groove on residual stress and distortion in T-joint weld

T-joint welding is the most common type used in heavy equipment industry. Localized heating and subsequent cooling induce residual stress in the weld process. Service loading overlapped with residual stress influences the strength of the welded structure and leads to premature failure of structure....

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2020-01, Vol.733 (1), p.12010
Main Authors: Wei, Chong Yi, Jiang, WenGuang
Format: Article
Language:English
Subjects:
Computer simulation
Distortion
Elastic analysis
Failure analysis
Finite element method
Grooves
Influence
Mathematical models
Residual stress
Tee joints
Weld metal
Welded structures
Welding
Workpieces
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Summary:T-joint welding is the most common type used in heavy equipment industry. Localized heating and subsequent cooling induce residual stress in the weld process. Service loading overlapped with residual stress influences the strength of the welded structure and leads to premature failure of structure. In this study, finite element analysis is used to study the influence of welding groove on residual stress and distortion in T-joint welding. The simulation consists of sequentially coupled thermal and elastic-plastic analysis using an element birth and death method to model the addition of weld metal to the workpiece. The results of numerical simulation are verified by comparing with experiment from published literature. The results show that welding groove has a significant influence on welding residual stress.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/733/1/012010