A streamlined FE method for deformation and residual stress prediction in butt welding using continuous heat input

Guan, Xiaoyu; Hirohata, Mikihito; Chang, Kyong Ho

Welding in the World, 2025

Number of Access:270（2025-07-27 01:27 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/100454

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Title
A streamlined FE method for deformation and residual stress prediction in butt welding using continuous heat input
Creator
CreatorName
Guan, Xiaoyu
NRID
1000050565140 1000050565140
ORCID
0000-0003-4013-7960 0000-0003-4013-7960
researchmap permalink
m_hirohata m_hirohata
Scopus Author ID
7006219862 7006219862
CreatorName
Hirohata, Mikihito
CreatorName
Chang, Kyong Ho
Subject
Butt welding
Finite element method
Heat input model
Out-of-plane deformation
Residual stress
Temperature histories
Description
The version of record of this article, first published in Welding in the World, is available online at Publisher’s website: https://doi.org/10.1007/s40194-025-01971-1.
Abstract
Finite element (FE) analysis is useful to estimate and predict deformation and residual stress generated by welding. To improve the efficiency of the FE analysis for the welding process, this study proposed an element combination and heat input method for simulating the butt welding process on steel with a V-shaped groove. This method integrated shell and solid elements and input heat energy continuously into the weld metal elements considering the energy distribution. Additionally, a parametric study of the double ellipsoidal model was conducted within the Continuous Distributed (CD) heat input method to identify optimal parameters for accurately simulating the heat source. The simulation results of the models using different heat input methods of deformation and residual stress were in good agreement with the experimental results, and the model using the continuously distributed heat input method saved 54% computational time compared to that by a conventional heat input method without considering the energy distribution. It was indicated that the proposed method for simulating the butt welding process was effective and could significantly reduce computational time.
Publisher
Springer Science and Business Media Deutschland GmbH
Source Title
Welding in the World
Date of Issued
2025-02-19
Language
English
Handle URL
https://hdl.handle.net/11094/100454
PISSN
00432288
eISSN
18786669
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1007/s40194-025-01971-1
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution 4.0 International License.
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article