学術雑誌論文

学術雑誌論文

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

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

John Wiley and Sons Inc

英語

2024-10-01

https://doi.org/10.1111/ffe.14400

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.

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.

This article is licensed under a Creative Commons Attribution 4.0 International License.

98132

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

John Wiley and Sons Inc

英語

2024-10-01

Fatigue and Fracture of Engineering Materials and Structures

47

10

3646

3657

https://doi.org/10.1111/ffe.14400

https://hdl.handle.net/11094/98132