Effect of joint design on residual stresses in AISI-304 stainless steel weldment - a numerical study

Weld joint preparation is an essential factor that affects the performance of the weldment. The effect of joint design under multi-pass shielded metal arc welding of AISI 304 stainless steel is investigated. A thermo-elastic-plastic finite element formulation is developed. The temperature field and...

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Bibliographic Details
Published in:Journal of mechanical science and technology 2021, 35(5), , pp.2167-2176
Main Authors: Jasra, Yogeshwar, Singhal, Sorabh, Saxena, Ravindra Kumar
Format: Article
Language:English
Subjects:
Austenitic stainless steels
Compressive properties
Control
Dynamical Systems
Engineering
Industrial and Production Engineering
Mechanical Engineering
Original Article
Residual stress
Shielded metal arc welding
Stainless steel
Temperature distribution
Vibration
Welded joints
Weldments
기계공학
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Summary:Weld joint preparation is an essential factor that affects the performance of the weldment. The effect of joint design under multi-pass shielded metal arc welding of AISI 304 stainless steel is investigated. A thermo-elastic-plastic finite element formulation is developed. The temperature field and residual stresses are validated using experimental data. Root opening and root face are the two prominent factors in the weld joint preparations. The formulation is applied to analyze the effect of these parameters on temperature formation and residual stress. The analysis demonstrates that the increase in the root opening, increases the peak temperature values thereby increases the maximum values of tensile and compressive residual stress. It is observed that the width of the tensile zone increases and that of the compressive zone decreases proportionately with the increase in root opening. It is found that the effect of the root face is not so prominent in comparison to the root opening.
ISSN:1738-494X
1976-3824
DOI:10.1007/s12206-021-0433-3