Numerical Prediction Of Deformations In Laser Welded Sheets Made Of X5CrNi18-10 Steel

Piekarska, W.; Кубяк, М.; Saternus, Z.; Stano, Sebastian; Domański, Tomasz

doi:10.1515/amm-2015-0334

Cited by 14 publications

(28 citation statements)

References 17 publications

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“…The mechanical phenomena analysis in the elastic range was made using the equilibrium equations (1), which are supplemented by constitutive and Cauchy's equations (2), and boundary conditions (3). The mathematical model is based on solving the following system of equations [5,[8][9][10][11]:…”

Section: Mathematical Descriptionmentioning

confidence: 99%

“…Displacement boundary conditions are used in the discussed problems [2][3][4][5][6][8][9][10][11]. The nodes located on the contact surface of the gantry crane beam with the support column on the right side of the beam can not displace in three directions (u x =u y =u z =0) and the left side in two directions (u x =u y =0) (Fig.…”

Section: Mathematical Descriptionmentioning

confidence: 99%

“…The numerical model uses finite element method in the weighted residuals formulation [5,[8][9][10][11][12]. Equation 1is multiplied by the weighting function and integrated over the entire region.…”

Section: Mathematical Descriptionmentioning

confidence: 99%

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The effect of the gantry crane beam cross section on the level of generated stresses

2018

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The gantry cranes are currently one of the most popular devices to transporting loads. They can be used in many industries. This study focuses on the numerical analysis of only the portable gantry crane. The mathematical and numerical model of mechanical phenomena in the gantry crane beam was presented in this paper. This problem was solved by using of the Finite Element Method (FEM). The analysis was made to the cross-section of gantry crane beam which was the I-beam or box beam. The numerical simulations are limited to numerical analysis of strength of the gantry crane beam which was loaded by the motion of the load force along its length. As a result of the calculations, the stresses and displacements of the structure of gantry crane were obtained. The influence of beam shape change and changing the loading force position on generate the equivalent stress in the crane beam was evaluated. The research performed, which allows the estimated of the stress state, pointing out the critical areas and values, were made in order to increase the strength of the structure of the gantry crane.

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Section: Mathematical Descriptionmentioning

confidence: 99%

Section: Mathematical Descriptionmentioning

confidence: 99%

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The effect of the gantry crane beam cross section on the level of generated stresses

2018

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“…The development of the above-named steels entails research works concerning various technologies enabling the joining of such steels [20][21][22]. Increasingly often, metals and their alloys are joined using highly efficient welding processes enabling the obtainment of high-quality welded joints accompanied by high joining process efficiency and less labour.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Properties of Hybrid Laser Arc Welded Joints (Laser Beam-MAG) in Thermo-Mechanical Control Processed S700MC Steel

Górka

Stano

2018

Metals

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The article presents the microstructure and properties of joints welded using the Hybrid Laser Arc Welding (HLAW) method laser beam-Metal Active Gas (MAG). The joints were made of 10-mm-thick steel S700MC subjected to the Thermo-Mechanical Control Process (TMCP) and characterised by a high yield point. In addition, the welding process involved the use of solid wire GMn4Ni1.5CrMo having a diameter of 1.2 mm. Non-destructive tests involving the joints made it possible to classify the joints as representing quality level B in accordance with the ISO 12932 standard. Destructive tests of the joints revealed that the joints were characterised by tensile strength similar to that of the base material. The hybrid welding (laser beam-MAG) of steel S700MC enabled the obtainment of good plastic properties of welded joints. In each area of the welded joints, the toughness values satisfied the criteria related to the minimum allowed toughness value. Tests involving the use of a transmission electron microscope and performed in the weld area revealed the decay of the precipitation hardening effect (i.e., the lack of precipitates having a size of several nm) and the presence of coagulated titanium-niobium precipitates having a size of 100 nm, restricting the growth of recrystallised austenite grains, as well as of spherical stable TiO precipitates (200 nm) responsible for the nucleation of ferrite inside austenite grains (significantly improving the plastic properties of joints). The tests demonstrated that it is possible to make welded joints satisfying quality-related requirements referred to in ISO 15614-14.

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“…Archard in 1957 was the first who found that the area of contact is approximately proportional to the normal force [5]. Nowadays advanced numerical methods such as finite element method (FEM) and the development of computer technology makes possible numerical modeling of complex problems [6][7][8]. This work aims to present a method of detecting collisions between objects surfaces and matching them during elastic deformation.…”

Section: Introductionmentioning

confidence: 99%

Numerical modeling of the contact between three-dimensional regions with the use of FEM

2018

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The numerical approach based on the finite element method (FEM) for modeling of mechanical interaction between three-dimensional objects is presented in the paper. The model of contact is based on the assumption that the nodes of the region which is the source of contact cannot overlap with the nodes of the region being the target. The procedure of the detection of collision between surfaces of the source and the target is discussed in details. The behaviour of surfaces being in contact depends on their rigidity and is numerically modeled in the case of perfectly rigid source and deformable target. Each modeled object has an independent mesh of finite elements. These meshes can be freely moved relative to each other. Example of calculation using original program written in C++ is presented and discussed.

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Numerical Prediction Of Deformations In Laser Welded Sheets Made Of X5CrNi18-10 Steel

Cited by 14 publications

References 17 publications

The effect of the gantry crane beam cross section on the level of generated stresses

The effect of the gantry crane beam cross section on the level of generated stresses

Microstructure and Properties of Hybrid Laser Arc Welded Joints (Laser Beam-MAG) in Thermo-Mechanical Control Processed S700MC Steel

Numerical modeling of the contact between three-dimensional regions with the use of FEM

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