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Journal of Zhejiang University SCIENCE A 2009 Vol.10 No.1 P.37~43

http://doi.org/10.1631/jzus.A0720127


3D finite element analysis of the residual stresses in butt-welded plates with modeling of the electrode-movement


Author(s):  F. VAKILI-TAHAMI, A. H. DAEI-SORKHABI, M. A. SAEIMI-S, A. HOMAYOUNFAR

Affiliation(s):  Department of Mechanical Engineering, University of Tabriz, Tabriz, Iran; more

Corresponding email(s):   F_Vakili@Tabrizu.ac.ir, Amirsorkhabi@gmail.com

Key Words:  Finite element (FE), Residual stresses, Weldment, 2.25Cr 1Mo steel


F. VAKILI-TAHAMI, A. H. DAEI-SORKHABI, M. A. SAEIMI-S, A. HOMAYOUNFAR. 3D finite element analysis of the residual stresses in butt-welded plates with modeling of the electrode-movement[J]. Journal of Zhejiang University Science A, 2009, 10(1): 37~43.

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author="F. VAKILI-TAHAMI, A. H. DAEI-SORKHABI, M. A. SAEIMI-S, A. HOMAYOUNFAR",
journal="Journal of Zhejiang University Science A",
volume="10",
number="1",
pages="37~43",
year="2009",
publisher="Zhejiang University Press & Springer",
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%A F. VAKILI-TAHAMI
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%A M. A. SAEIMI-S
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A1 - F. VAKILI-TAHAMI
A1 - A. H. DAEI-SORKHABI
A1 - M. A. SAEIMI-S
A1 - A. HOMAYOUNFAR
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A0720127


Abstract: 
In this paper the residual stresses in a butt-welded plate of 2.25Cr 1Mo has been analyzed using a 3D and transient finite element (FE) model. Also the effect of the welding-electrode speed has been studied using death and birth of FEs. For this purpose, a coupled thermo-mechanical FE solution has been used to obtain the temperature distribution and the resulting residual stresses. Also, the variations of the physical properties of the material with temperature have been taken into account. Results show that the residual stresses in the heat affected zone (HAZ) are maximum and change along the weld and also in the plate-thickness. It has been shown that use of the 3D and transient model will lead to more accurate and realistic results which are well compared with the experimental test data.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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