Numerical simulation of explosive welding using Smoothed Particle Hydrodynamics method

Feng, Jianrui; Chen, P; Zhou, Qiang; Dai, Kaida; An, E.; Yuan, Ye

doi:10.21152/1750-9548.11.3.315

Cited by 11 publications

(4 citation statements)

References 21 publications

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“…Thus, for a short period of time, a thin layer with high temperature appear near the bonding region. Similar results were also reported by some other authors [11][12][13][14][15][16][17][18][19][20][21][22][23]. By analyzing the collision process of the simulations, we can divide the joining procedure of the bonding interface into three distinct stages.…”

Section: Introductionsupporting

confidence: 87%

“…Based on whether melting occurs, the joining mechanism can be summarized as pressure welding or fusion-diffusion welding, as shown in figure 9. During the drastic collision of explosive welding, jet will be ejected in front of the collision point, which will strip away the surface contaminant, oxides and impurities [8,14]. After the drastic collision, the generated high pressure can provide tight contact between the joining surfaces.…”

Section: Joining Mechanismmentioning

confidence: 99%

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Formation of bonding interface in explosive welding—a molecular dynamics approach

Feng

Dai

Zhou

et al. 2019

J. Phys.: Condens. Matter

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The bonding between copper (Cu) and iron (Fe) to form a bi-layer composite using explosive welding is investigated through molecular dynamics simulation. Three stages in the joining process, including loading, unloading and cooling, are sequentially considered in modelling the formation of the bonding interface. The results demonstrate that three types of bonding interfaces can be obtained, based on whether melting happens. The morphologies and the atomic structures of the three types bonding interfaces in each stage are analyzed. The formation of nanograins near the bonding interface is mainly due to the melting and subsequent cooling process. Atomic simulations of tensile tests reveal that melting is not a necessary factor to form the bonding interface. What’s more, depending on whether melting occurs, the joining mechanism can be regarded as pressure welding or fusion-diffusion welding.

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Section: Introductionsupporting

confidence: 87%

Section: Joining Mechanismmentioning

confidence: 99%

Formation of bonding interface in explosive welding—a molecular dynamics approach

Feng

Dai

Zhou

et al. 2019

J. Phys.: Condens. Matter

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“…The yield force 02 of explosively welded plates is proposed to be predicted according to the proportional increase in yield stress 02 as the function of hardness rate: The process of explosive welding includes problems of phase transformation, shock impact, plastic deformation, and fluid-structure interaction. A thorough analysis of the process requires sophisticated multiphysics numerical modeling [52][53][54][55], which is nowadays narrowed to the prediction of jet formation, morphology of the interfacial wave, and weldability. Residual stress formation has not yet been numerically simulated.…”

Section: Mechanical Testmentioning

confidence: 99%

Influence of Impact Velocity on the Residual Stress, Tensile Strength, and Structural Properties of an Explosively Welded Composite Plate

et al. 2020

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This study aimed to analyze the effect of the impact velocity of a Zr 700 flyer plate explosively welded to a Ti Gr. 1/P265GH bimetallic composite on the residual stress formation, structural properties, and tensile strength. The residual stresses were determined by the orbital hole-drilling strain-gauge method in a surface layer of Zr 700 in as-received and as-welded conditions. The analysis of the tensile test results based on a force parallel to interfaces was used to propose a model for predicting the yield force of composite plates. Compressive residual stresses found in the initial state of the Zr 700 plate were transformed to tensile stresses on the surface layer of the welded Zr 700 plate. A higher impact velocity resulted in higher tensile stresses in the Zr 700 surface layer. To increase the resistance of the composite plate to stress-based corrosion cracking, a lower value of impact velocity is recommended in the welding process.

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“…mm. The parameters of the materials used in the simulation were found in[14,15,[18][19][20] and are presented in Tables1 and 2.Key Engineering Materials Vol. 910…”

mentioning

confidence: 99%

Weldability Window for High-Velocity Impact Welding of Al and Ti Plates Obtained by Numerical Simulation

Émurlaeva

Aleksandrova

Батаев

2022

KEM

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In this study, the process of high-velocity impact welding of commercially pure Al and Ti plates was simulated using smoothed particle hydrodynamics (SPH) method. The paper aimed to determine by numerical simulation the range of collision parameters suitable for Al and Ti welding, and to compare the results obtained with the known semi-empirical models used to construct the "weldability window". For this, a set of simulations with different collision point velocity and collision angle was carried out. From the data obtained, it follows that SPH simulation reproduces well the shape of the interface, typical for high-velocity impact welding, and provides better understanding of material flow and related phenomena. This method allows one to select the collision parameters that are optimal for a high-quality joint.

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Numerical simulation of explosive welding using Smoothed Particle Hydrodynamics method

Cited by 11 publications

References 21 publications

Formation of bonding interface in explosive welding—a molecular dynamics approach

Formation of bonding interface in explosive welding—a molecular dynamics approach

Influence of Impact Velocity on the Residual Stress, Tensile Strength, and Structural Properties of an Explosively Welded Composite Plate

Weldability Window for High-Velocity Impact Welding of Al and Ti Plates Obtained by Numerical Simulation

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