Numerical modeling of steel fillet welded joint

Krejsa, Martin; Brožovský, Jiří; Mikolášek, David; Pařenica, Přemysl; Flodr, Jakub; Materna, Alois; Halama, Radim; Kozak, Jaroslav

doi:10.1016/j.advengsoft.2017.03.013

Cited by 20 publications

(7 citation statements)

References 35 publications

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“…Application of sewn command results in a solid model, which was subsequently exploited in stress distribution analysis (Figure 4). The geometric model with the real described geometry of the weld is necessary for the appropriate analysis of the stress state in the welding joint [8].…”

Section: Modifications Of the Geometric Modelmentioning

confidence: 99%

Analysis of Stress Intensity Factor on Weld Surface

et al. 2022

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Progressive welding technologies based on high energy density welding process such as electron beam welding allow joining two materials without consumable. The nature of the process is the deposition of energy to the small areas, which leads to the creation of a narrow heat-affected zone (HAZ). Therefore, a prime example of surface weld defects in the case of the beam electron welding technology are cracks in the material. The article is focused on the preparation of a computational model that comprises a precise description of welding joint shape. The accurate model description was acquired using 3D scanning. In the next step, the data are subsequently modified in MATLAB and ADINA for model simplification. The performed analysis of results shows a significant influence of the weld surface on the occurrence of stress concentrations in the weld zone.

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Section: Modifications Of the Geometric Modelmentioning

confidence: 99%

Analysis of Stress Intensity Factor on Weld Surface

et al. 2022

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“…Subsequently, the application of the discrete optimization algorithm for optimal design of selected welded truss construction (for example parts of rotating tower crane) is expected in terms of load carrying capacity. The intention of authors is addition of missing computational tools, chain procedures and proposal of simulation calculations system primarily based on the finite element method [6][7][8][9]. The methodology is a complex encompassing design, computational and technology areas into a whole unit.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis and optimization of large dimensioned structures considering stress concentrations in welded joint

et al. 2022

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The paperpresents an optimal design and computational solution of truss structures consideringstress concentrations in welded joints. The calculation approach for precise analysis of welded joints using finite element method is introduced. The standard finite element analysis of the truss structure is followed by a special calculation procedure. The procedure is based on the known method of sections. Each member of the truss structure joined at the point under investigation is sectioned off the entire structure. In the next step, a new detailed finite element model of the welded joint is created. These analysis results allow define the stress concentration factors for technical problems of this type. Finally, a specific optimization procedure for design of structures based on the principles of discrete optimization is shown.

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“…The final design, however, often lacks an advanced numerical model with an exact static analysis of structures' behaviour [15,16]. Existing publications have analysed problems of numerical modelling of structures based on thin-walled sections [17,18], steel bearing elements [19], or reinforced concrete structures [20], while the problem of the modelling of the clinch connection has not yet been thoroughly explored. The results of the tests can lead to the calibration and validation of the mathematical models [8,21,22], which should ensure the conformity of the numerical model and the actual behaviour of the studied structures [23].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Evaluation of Clinch Connections of Thin-Walled Building Structures

2020

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The high energy intensity of industry and the importance of natural resources are currently much-discussed topics. Light steel structures made from thin-walled cold-formed (TWCF) profiles play an important role in this discussion because their increased use has significantly reduced the consumption of conventional structural steel. New, more efficient technologies for connections of the TWCF structures, such as punch riveting and clinching, are being developed, which are advantageous in terms of cost and time. An innovative way to obtain the physical properties of a clinch joint and instructions for a detailed reliability assessment of this type of connection is described in this article. The resulting behaviour of the numerical model based on the tensile test of the basic material and suitable boundary conditions was validated by a physical experiment. The computational procedures presented in the article will facilitate the design of steel structures in the field of global static analysis of TWCF light steel structures because the described methods can be generalised and applied in commonly available commercial software. Two variants of the model were prepared and evaluated—with and without slippage in the press jaws. Comparison of the numerical model and experimental results shows compliance.

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Numerical modeling of steel fillet welded joint

Cited by 20 publications

References 35 publications

Analysis of Stress Intensity Factor on Weld Surface

Analysis of Stress Intensity Factor on Weld Surface

Numerical analysis and optimization of large dimensioned structures considering stress concentrations in welded joint

Experimental and Numerical Evaluation of Clinch Connections of Thin-Walled Building Structures

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