Experimental and numerical study on the mechanical behavior of Q460D high-strength steel bolted connections

Guo, Hongchao; Xiao, Feng; Liu, Yunhe; Liang, Gang

doi:10.1016/j.jcsr.2018.09.012

Cited by 32 publications

(6 citation statements)

References 18 publications

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“…Bolted connections in HSS have received considerable attention in recent years and numerous studies concerning the static strength of bolted joints in HSS have been conducted [19][20][21][22]. The quantity of literature regarding fatigue performance of bolted connections in HSS is, however, limited.…”

Section: Introductionmentioning

confidence: 99%

Influence of hole-making procedures on fatigue behaviour of high strength steel plates

Jiménez-Peña

Goulas

Rossi

et al. 2019

Journal of Constructional Steel Research

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High strength steels (HSS) offer a unique opportunity to reduce the weight of civil and off-shore structures and heavy-duty machinery. Such equipment is subjected to continuous cyclic loading and therefore fatigue failure often happens where concentrations of stresses are present, the latter most of the time being caused by connection details. Previous studies have demonstrated that an increase in yield strength does not lead to a proportional increase in fatigue resistance, particularly in welded connections. In that regard, the utilisation of bolted joints is often proposed as an alternative to welded joints. The hole-making procedure is an essential factor in the assessment of the fatigue resistance of bolted joints, since different hole-making techniques yield different surface qualities and residual stresses, which consequently impact the final fatigue limit. This work addresses the effect of the main mechanical (punching, drilling and waterjet) and thermal (plasma and laser) cutting techniques on the fatigue performance of HSS plates containing holes.A series of fatigue tests with moderately thick plates made of S500MC were carried out using different hole-making techniques. The surface, geometry and residual damage of every hole-making procedure were studied by means of optical evaluation, hardness tests and roughness evaluation, and large differences were observed: drilling was found to produce the most geometrically accurate hole and the smoothest surface finish; while laser and waterjet cutting displayed the best fatigue 2 performance. The results of this research can provide an estimation of the applicability of each holemaking process to this particular HSS grade.

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Section: Introductionmentioning

confidence: 99%

Influence of hole-making procedures on fatigue behaviour of high strength steel plates

Jiménez-Peña

Goulas

Rossi

et al. 2019

Journal of Constructional Steel Research

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“…In [14] they concluded, that the effect of steel grade on the failure mode of multi-bolt connection and normalised ultimate bearing resistance is negligible and that the predictions by EN 1993-1-8 [4] has sufficient safety. An experimental and numerical study on the mechanical behaviour of Q460D high-strength steel bolted connections was done by Guo et al [15].…”

Section: 0•f Ymentioning

confidence: 99%

Influence of Strain‐hardening on the Load‐carrying Behaviour of Bearing Type Bolted Connections

Studer

Taras

2022

ce papers

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yield strength ratios fu/fy (e.g. fu/fy > 1.50), which are significantly above common values for conventional structural steels, while at the same time maintaining high ductility.This results in a pronounced hardening behaviour, which can have positive effects in various applications. One such application is in bolted connections, where either the net cross-section weakened by the presence of the bolt hole or the hole bearing resistance becomes decisive in design. In non-prestressed bolted connections, which are very common in building construction and other structures that are primarily loaded by static loads, the majority of the load is transferred through bearing action between the bolt shank and the hole wall. The build-up of the hole bearing resistance is associated with increasing deformations (elongations) of the bolt hole. With the applied load approaching the ultimate bearing resistance, the elongation of the bolt hole becomes considerably large, which can affect the overall performance of the structure.

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“…In a general way, the deviation of bolt group preload is more than 10% or even reach 30%–40%, and it is hard to eliminate. Many works [ 27 , 28 ] on bolt group slip or stiffness mainly study the effect of structural dimensions and joint arrangement (horizontal or longitudinal) on bearing capacity and deformation, but rarely considered the role of preload deviation and joint interaction.…”

Section: Introductionmentioning

confidence: 99%

A methodology for energy dissipation prediction of the bolt group with non-uniform preload

Sun

Sun²,

Zhao³

et al. 2023

Heliyon

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Experimental and numerical study on the mechanical behavior of Q460D high-strength steel bolted connections

Cited by 32 publications

References 18 publications

Influence of hole-making procedures on fatigue behaviour of high strength steel plates

Influence of hole-making procedures on fatigue behaviour of high strength steel plates

Influence of Strain‐hardening on the Load‐carrying Behaviour of Bearing Type Bolted Connections

A methodology for energy dissipation prediction of the bolt group with non-uniform preload

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