Local heating for reducing residual stress and fatigue-performance improvement of welded joints

Hirohata, Mikihito; Chang, Kyong Ho; Suzuki, Toshimitsu et al.

Journal of Constructional Steel Research, 2024, 215, 108544

アクセス数:312件（2025-07-26 15:23 集計）

固定URL: https://hdl.handle.net/11094/95863

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論文情報

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タイトル
Local heating for reducing residual stress and fatigue-performance improvement of welded joints
著者
NRID
1000050565140 1000050565140
ORCID
0000-0003-4013-7960 0000-0003-4013-7960
researchmap permalink
m_hirohata m_hirohata
Scopus Author ID
7006219862 7006219862
著者名
Hirohata, Mikihito
著者名
Chang, Kyong Ho
著者名
Suzuki, Toshimitsu
著者名
Konishi, Hideaki
キーワード等
Box-welded joints
Fatigue
Finite element analysis
Residual stress
Welding
内容
Hirohata M., Chang K.H., Suzuki T., et al. Local heating for reducing residual stress and fatigue-performance improvement of welded joints. Journal of Constructional Steel Research 215, 108544 (2024); https://doi.org/10.1016/j.jcsr.2024.108544.
抄録
This study conducts a series of experiments and numerical simulations to explore the effectiveness of local induction heating in reducing welding residual stress and enhancing the fatigue life of steel structural members. The primary focus was on diminishing tensile residual stress around box-welded joints using an induction heating device. The investigation encompassed various heating conditions, including temperature, position, and sequence, to examine the reduction of welding residual stress. Experimental and analytical approaches were utilized to assess these conditions. Residual stress measurements confirmed the efficacy of stress reduction through local heating, while numerical simulations elucidated the underlying stress reduction mechanism. Additionally, the study evaluated the impact of this residual stress reduction on the fatigue performance of the box-welded joints. It was found that fatigue life could be significantly improved by local heating under two distinct loading conditions in which tensile and compressive stresses were applied to the weld toe.
出版者
Elsevier Ltd
収録物名
Journal of Constructional Steel Research
巻(号)
215
ページ
108544
刊行年月
2024-04-01
言語
英語
ハンドルURL
https://hdl.handle.net/11094/95863
PISSN
0143974X
関連情報 (isVersionOf)
DOI (出版社版)
https://doi.org/10.1016/j.jcsr.2024.108544
アクセス権
embargoed access
権利情報
© 2024. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
The full-text file will be made open to the public on 1 April 2026 in accordance with the publisher's policy.
出版タイプ
Accepted Manuscript
カテゴリ
学術雑誌論文 Journal Article