A semi-analytical solution of 3-D transient temperature field for a uniform plate subjected to Gaussian-distribution laser heat source

Wang, Xiaogui; Xiao, Yi-Li; Gao, Ninghua; Liang, Lihua; Lu, Chunshan; Jiang, Haojie

doi:10.2298/tsci190102268w

Cited by 7 publications

(1 citation statement)

References 37 publications

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“…With the growing development of computer software and hardware in recent years, Finite Element Methods (FEM) has become an essential instrument in computational studies (Wang et al, 2019). The vantage of FEM is the lower cost and time associated when compared to experimental methods (Chiocca et al, 2019;Kik and Górka, 2019).…”

Section: Introductionmentioning

confidence: 99%

Thermal evaluation of MAG/TIG welding using numerical extension tool

Marques

Pereira²,

Ribeiro³

2021

Int. J. Appl. Sci. Eng.

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The manufacturing processes involving thermal transitions have been more used in industries nowadays, being the welding one of the most widely used. The requirement to design and predict adverse conditions are fundamental to the development of any mechanical project. As a result, the market needs have motivated the companies to find faster and more effective solutions, being one of a recent tools an ACT (Ansys Customization Toolkit) called "Moving Heat Source", in which is executed the Gaussian heat source to model welding and laser processes. Based on this, the present work proposes to evaluate the accuracy of that extension implementing a finite element model for the MAG/TIG welding processes in DINCK20 steel and Al6082-T6 aluminium alloy, comparing with one of the first mathematical model proposed by the literature (Rosenthal) and with a recent analytical method of high precision already validated experimentally. The results showed a smaller global error for MAG process (3~10%) when compared to TIG (15~18%) and, the temperatures measured on the surface of the plate presented errors lower than the bottom in both alloys.

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Section: Introductionmentioning

confidence: 99%

Thermal evaluation of MAG/TIG welding using numerical extension tool

Marques

Pereira²,

Ribeiro³

2021

Int. J. Appl. Sci. Eng.

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Diffusion of Carbon Quantum Dots on Lithium Liquid Metal for Artificial SEI

Liu,

Xie,

Wang

et al. 2024

Adv Funct Materials

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The unstable solid electrolyte interface (SEI) formed on the surface of Li metal can induce dendrite growth, resulting in capacity fading, battery short circuit, and other problems, thus hindering the practical application of Li metal battery. In order to obtain stable and effective SEI, it is an effective strategy to construct an ideal artificial SEI (ASEI) by regulating the composition and structure of the interface. Among the inorganic materials used in the construction of ASEI, carbon quantum dots (CQDs) stand out as promising material due to their small size and abundant active sites. Herein, benefiting from the fluidity, surface smoothness, and high reactivity of liquid metal, combined with the use of N‐doped CQDs as dispersing particles, a surface modification method to achieve uniform dispersion of particles within the liquid metal is proposed. This technique offers a low‐cost solution for achieving uniform dispersion of little quantities of N‐doped CQDs (single dose < 0.1 mg cm−2) while ensuring enhanced interface adhesion to realize the construction of dense, strong and uniform ASEI. The corresponding symmetrical cells show lower voltage polarization and outstanding cycling stability than the bare Li electrode.

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