Numerical Analysis of Concrete Fracture under Shock Wave
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Radchenko, P. A.; Батуев, С. П.; Радченко, А. В.

doi:10.1134/s1029959921010069

Cited by 25 publications

(5 citation statements)

References 10 publications

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“…Increased fragmentation of the sample is seen for the increasing rate of loading. This is a typical regularity of the change in fracture pattern for the majority of brittle and quasi-brittle materials under dynamic impact [ 65 ].…”

Section: Resultsmentioning

confidence: 99%

Analysis of the Quasi-Static and Dynamic Fracture of the Silica Refractory Using the Mesoscale Discrete Element Modelling

et al. 2021

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Computer modelling is a key tool in the optimisation and development of ceramic refractories utilised as insulation in high-temperature industrial furnaces and reactors. The paper is devoted to the mesoscale computer modelling of silica refractories using the method of homogeneously deformable discrete elements. Approaches to determine the local mechanical properties of the constituents from the global experimental failure parameters and respective crack trajectories are considered. Simulations of the uniaxial compressive and tensile failure in a wide range of quasi-static and dynamic loading rates (102 s−1) are performed. The upper limit of the dynamic loading rates corresponds to the most severe loading rates during the scrap loading on the refractory lining. The dependence of the strength, fracture energy, and brittleness at failure on the loading rate is analysed. The model illustrates that an increase in the loading rate is accompanied by a significant change in the mechanical response of the refractory, including a decrease in the brittleness at failure, a more dispersed failure process, and a higher fraction of the large grain failure. The variation of the grain–matrix interface’s strength has a higher impact on the static compressive than on the static tensile properties of the material, while the material’s dynamic tensile properties are more sensitive to the interface strength than the dynamic compressive properties.

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Section: Resultsmentioning

confidence: 99%

Analysis of the Quasi-Static and Dynamic Fracture of the Silica Refractory Using the Mesoscale Discrete Element Modelling

et al. 2021

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“…Задача решается численно, методом конечных элементов, в трехмерной постановке с использованием авторского программного комплекса EFES 2.0 [2]. Моделирование проводится в рамках феноменологического подхода механики деформируемого твердого тела [3]. Исследовано напряженно-деформированное состояние и разрушение анодного блока среднетемпературного фторного электролизера в зависимости от температуры окружающего расплава.…”

Section: институт физики прочности и материаловедения со ран томскunclassified

Numerical Simulation of the Stress-Strain State and Failure of the Anodic Block of the Electrolyzer Under Heating

Radchenko¹,

Радченко²,

Batuev³

2022

Physical Mesomechanics of Materials. Physical Principles of Multi-Layer Structure Forming and Mechanisms of Non-Linear Behavior

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“…Let us briefly discuss the computational approach in use while its detailed description is given elsewhere (see, e.g., [12][13][14]). The numerical simulation involves the finitedifference [12] or finite-element solutions [13][14][15] to the dynamic boundary-value problem for grain conglomerates. In the numerical implementation, mesh elements are united into sets to represent different grains.…”

Section: Microstructure-based Simulationmentioning

confidence: 99%

Mesoscale Deformation-Induced Surface Phenomena in Loaded Polycrystals

2021

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The paper reviews the results of numerical analyses for the micro-and mesoscale deformation-induced surface phenomena in three-dimensional polycrystals with the explicit account for the grain structure. The role of the free surface and grain boundaries in the appearance of the grain-scale stress concentrations and plastic strain nucleation is illustrated on the examples of aluminum polycrystals. Special attention is paid to the discussion of mesoscale deformation-induced surface roughening under uniaxial tension.

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Numerical Analysis of Concrete Fracture under Shock Wave Loading

Cited by 25 publications

References 10 publications

Analysis of the Quasi-Static and Dynamic Fracture of the Silica Refractory Using the Mesoscale Discrete Element Modelling

Analysis of the Quasi-Static and Dynamic Fracture of the Silica Refractory Using the Mesoscale Discrete Element Modelling

Numerical Simulation of the Stress-Strain State and Failure of the Anodic Block of the Electrolyzer Under Heating

Mesoscale Deformation-Induced Surface Phenomena in Loaded Polycrystals

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