Fatigue performance of bonding-assisted fillet weld roots by inserting adhesive material

Jiahao, Mao; Hirohata, Mikihito; Yifei, Xu et al.

Fatigue and Fracture of Engineering Materials and Structures, 2024, 47(10), 3646-3657

Number of Access:330（2025-07-27 01:37 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/98132

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Title
Fatigue performance of bonding-assisted fillet weld roots by inserting adhesive material
Creator
CreatorName
Jiahao, Mao
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
Yifei, Xu
CreatorName
Kyong-Ho, Chang
Subject
bonding
fatigue
fillet welding
steel bridge
weld root
Description
Jiahao M., Mikihito H., Yifei X., et al. Fatigue performance of bonding-assisted fillet weld roots by inserting adhesive material. Fatigue and Fracture of Engineering Materials and Structures, (2024); https://doi.org/10.1111/ffe.14400.
Abstract
This study proposes a novel method to prevent fatigue cracks at the root of fillet welds in steel bridge supports by inserting epoxy resin as an adhesive material. A total of 36 specimens, categorized into welded-only and bonding-assisted types, were subjected to a series of four-point bending fatigue tests to simulate cyclic tensile stress conditions. Additionally, finite element analysis was employed to investigate the impact of epoxy insertion on stress distribution near the weld root. The results demonstrated that bonding-assisted specimens exhibited significantly improved fatigue life compared to welded-only specimens, with a notable reduction in tensile stress at the weld root. Furthermore, a displacement-based method was employed to evaluate weld root fatigue performance, yielding consistent results. These findings highlight the potential of integrating adhesive bonding in fillet welds to improve the durability and service life of steel bridge structures by effectively mitigating fatigue-related issues.
Publisher
John Wiley and Sons Inc
Source Title
Fatigue and Fracture of Engineering Materials and Structures
Volume (Issue)
47(10)
Page
3646-3657
Date of Issued
2024-10-01
Language
English
Handle URL
https://hdl.handle.net/11094/98132
PISSN
8756758X
eISSN
14602695
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1111/ffe.14400
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