Welding Window: Comparison of Deribas’ and Wittman’s Approaches and SPH Simulation Results

Émurlaeva, Yulia Yu.; Батаев, И. А.; Zhou, Qiang; Lazurenko, Daria V.; Иванов, И. А.; Ryabinkina, P. A.; Tanaka, Shigeru; Chen, Pengwan

doi:10.3390/met9121323

Cited by 21 publications

(11 citation statements)

References 32 publications

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“…(7), following Hietel et al [38]: is the volumetric stress contribution from the interaction of node pair I-J , which is assumed constant in Eq. (15), and the coefficient vector IJ j is defined as As shown in Fig. 5, the coefficient vector IJ can be interpreted as an equivalent geometric coefficient by drawing a comparison to finite-volume methods and Riemann-SCNI, with the surface normal IJ , multiplied by the surface area of the virtual interface between node I and J .…”

Section: Particle-based Godunov-type Shock Algorithmmentioning

confidence: 99%

“…In particular, fragmentation can be modeled naturally, governed by physical laws. Smoothed-particle hydrodynamics (SPH) has been widely used for modeling impact welding [10][11][12][13][14][15] and captured jetting and interfacial wave formation. Efficient computation of shape functions is one of SPH's advantages.…”

Section: Introductionmentioning

confidence: 99%

“…In explosive/impact welding simulations, such issues can produce unstable and unphysical particle distributions when large interfacial waves are formed [11]. Also, when the flyer plate is under severe bending, instabilities in displacement and stress can be shown throughout the plate [14,15]. Fig.…”

Section: Introductionmentioning

confidence: 99%

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A semi-Lagrangian reproducing kernel particle method with particle-based shock algorithm for explosive welding simulation

Baek¹,

Chen²,

Zhou

et al. 2021

Comput Mech

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The explosive welding process is an extreme-deformation problem that involves shock waves, large plastic deformation, and fragmentation around the collision point, which are extremely challenging features to model for the traditional mesh-based methods. In this work, a particle-based Godunov shock algorithm under a semi-Lagrangian reproducing kernel particle method (SL-RKPM) is introduced into the volumetric strain energy to accurately embed the key shock physics in the absence of a mesh or grid, which is shown to also ensure the conservation of linear momentum. For kernel stability, a deformation-dependent anisotropic kernel support update algorithm is proposed, which is shown to capture excessive plastic flow and material separation. A quasi-conforming nodal integration is adopted to avoid the need of updating conforming cells which is tedious in extreme deformations. It is shown that the proposed formulation effectively captures shocks, jet formation, and smooth-to-wavy interface morphology transition with good agreement with experimental results.

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Section: Particle-based Godunov-type Shock Algorithmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A semi-Lagrangian reproducing kernel particle method with particle-based shock algorithm for explosive welding simulation

Baek¹,

Chen²,

Zhou

et al. 2021

Comput Mech

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show abstract

“…The lower welding limit formula Eq. (2.2) proposed by Deribas [17] in 1971 is the most widely used. Where : is the lower critical angle at which explosive welding can produce "re-incident flow", is a constant, the value of is determined by the cleanliness of the surface of explosive welding materials, when the surfaces treatment of the flyer plate and the base plate are clean, =0.6.…”

Section: Lower Limit Of Explosive Weldingmentioning

confidence: 99%

Experimental and Numerical Study on the Explosive Welding of Niobium-Steel

Wang¹,

Li²,

Wang³

2021

Preprint

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The aim of this work is to study the use of explosive welding to produce Niobium-Steel composite plate, which is used in nuclear industry equipment material manufacturing. The welding parameters was determined by weldability window and numerical simulation was used to predict the wave shape of the welding interface. The morphology of the interface wave was observed by scanning electron microscope. Component measurement around interface waves. The experimental samples were investigeted using mechanical tests. The results show that the explosion parameters optimized by theory and numerical simulation can be used to obtain a niobium-steel composite plate with better welding quality. It can be proved that the welding quality is better by observing the interface wave and testing the mechanical properties, it can be seen that the melting zone of the welding interface is composed of niobium and steel by the composition analysis instrument. The morphology of the welding interface wave is consistent with the numerical simulation results, and the numerical simulation shows the changes of temperature, strain, and stress during the welding process.

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“…Six research papers on explosion welding have been published. Émurlaeva et al [1] conducted a Smooth Particle Hydrodynamics (SPH) simulation work to further analyse the suitability of the classical approaches defining the boundaries of the weldability window. The numerical simulation results, which were applied to 6061-T6 aluminium alloy, were found to reproduce the basic phenomena typical of high-velocity impact welding, such as the jet and wave formation and the material deformation near the interface.…”

Section: Contributionsmentioning

confidence: 99%