Numerical Analysis of Aluminum Cellular Beams with Cells of Different Arrangement

Derlatka, Anna; Kasza, Przemysław

doi:10.4028/www.scientific.net/amr.1020.158

Cited by 9 publications

(5 citation statements)

References 11 publications

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“…In the latter case they are called integrally stiffened panels (ISP). ISP structures can be joined using FSW [13] or Refill Friction Stir Spot Welding [14][15][16][17][18]. Compared to fusion welding technologies FSW offers better strength properties, fewer welding defects, reduction of welding distortions and reduction of residual stresses.…”

Section: Introductionmentioning

confidence: 99%

Archives of Metallurgy and Materials

Lacki,

Adamus,

Winowiecka

2019

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THE NUMERICAL SIMULATION OF AVIATION STRUCTURE JOINED BY FSWThis work presents a numerical simulation of aviation structure joined by friction stir welding, FSW, process. The numerical simulation of aviation structure joined by FSW was created. The simulation uses thermomechanical coupled formulation. The model required creation of finite elements representing sheets, stiffeners and welds, definition of material models and boundary conditions. The thermal model took into account heat conduction and convection assigned to appropriate elements of the structure. Time functions were applied to the description of a heat source movement. The numerical model included the stage of welding and the stage of releasing clamps. The output of the simulation are residual stresses and deformations occurring in the panel. Parameters of the global model (the panel model) were selected based on the local model (the single joint model), the experimental verification of the local model using the single joint and the geometry of the panel joints.

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Section: Introductionmentioning

confidence: 99%

Archives of Metallurgy and Materials

Lacki,

Adamus,

Winowiecka

2019

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“…3) analysed in [15][16][17]. The modelling of RFSSW process and structures produced by RFSSW is still being developed.…”

Section: Deformacja Plastyczna Wybranych Połączeń Rfssw Podczas Rozcimentioning

confidence: 99%

The Plastic Deformation of RFSSW Joints During Tensile Tests / Deformacja Plastyczna Wybranych Połączeń RFSSW Podczas Rozciągania

Lacki¹,

Derlatka²

2015

Archives of Metallurgy and Materials

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The dynamic development of the friction stir welding (FSW) technology is the basis for the design of durabe joints inter alia in the aviation industry. This technology has a prospective application, especially for the aluminum alloys. It is suitable for a broad spectrum of permanent joints. The joints obtained by FSW technology are characterized by good mechanical properties. In this paper, the friction stir spot welding joints were analysed. The example of a structure made using this technology were presented. The lap joints made of 2mm Al 6061-T6 sheets were the investigation subject. The different spot welds arrangements were analysed. The tensile test were performed with optical deformation measurement system, which allow to obtain the plastic deformation field on the sample surface. The plastic strain graphs for the characteristic line passing through the maximum deformation were registered and presented. The experimental results were compared to the FEM numerical analysis. The numerical models were built with 3D-solid elements. The boundary conditions, material properties and geometry of the joints were identical as during experimental investigation. The mechanism of deformation of welded joints during tensile test was described and explained. It has been found that the arrangement of the spot welds with respect to the tensile direction has an important influence on the behaviour and deformation of lap joint.

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“…Upon reaching the desired plunge depth the sleeve is retracted and the pin is lowered. At the same time, the pin presses the material into the place of the raising sleeve [12][13][14]. Both the sleeve and pin return to the basic position.…”

Section: Introductionmentioning

confidence: 99%

Selection of basic position in Refill Friction Stir Spot Welding of 2024-T3 and D16UTW aluminum alloy sheets

Lacki¹,

Derlatka²,

Gałaczyński³

2017

Archives of Metallurgy and Materials

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One of the important parameters of Refill Friction Stir Spot Welding is the so-called basic position of the tool. This is the arrangement of the pin and sleeve which occurs when the tool is plunged into the material. The basic positions can be divided into two categories. In the first category, the sleeve and the pin are above the sheet surface or below sheet surface and in the second category the pin is retracted within the sleeve or protrudes from it.The aim of the work was to test four settings of the basic position, and then determine the best setting of the basic position, without changing the other welding parameters. Joints made of an aluminum alloy 2024-T3 sheet having a thickness of 1.0 mm and an aluminum alloy D16UTW sheet having a thickness of 0.6 mm were analysed. The best setting of the basic position was determined based on assessment of the force carried in shear test, macrostructure and weld face of the joints.

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Numerical Analysis of Aluminum Cellular Beams with Cells of Different Arrangement

Cited by 9 publications

References 11 publications

Archives of Metallurgy and Materials

Archives of Metallurgy and Materials

The Plastic Deformation of RFSSW Joints During Tensile Tests / Deformacja Plastyczna Wybranych Połączeń RFSSW Podczas Rozciągania

Selection of basic position in Refill Friction Stir Spot Welding of 2024-T3 and D16UTW aluminum alloy sheets

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