Результаты поиска по 'dense packing':
Найдено статей: 3
  1. Abgaryan K.K., Zhuravlev A.A., Zagordan N.L., Reviznikov D.L.
    Discrete-element simulation of a spherical projectile penetration into a massive obstacle
    Computer Research and Modeling, 2015, v. 7, no. 1, pp. 71-79

    А discrete element model is applied to the problem of a spherical projectile penetration into a massive obstacle. According to the model both indenter and obstacle are described by a set of densely packed particles. To model the interaction between the particles the two-parameter Lennard–Jones potential is used. Computer implementation of the model has been carried out using parallelism on GPUs, which resulted in high spatial — temporal resolution. Based on the comparison of the results of numerical simulation with experimental data the binding energy has been identified as a function of the dynamic hardness of materials. It is shown that the use of this approach allows to accurately describe the penetration process in the range of projectile velocities 500–2500 m/c.

    Keywords: high velocity impact, discrete-element model, binding energy, numerical simulation.
    Views (last year): 5. Citations: 5 (RSCI).
  2. Mizgulin V.V., Kadushnikov R.M., Alievsky D.M., Alievsky V.M.
    The modeling of dense materials with spherepolyhedra packing method
    Computer Research and Modeling, 2012, v. 4, no. 4, pp. 757-766

    The paper presents a new dense material modeling method based on spherepolyhedra packing algorithm, describes mathematical model of spherepolyhedra and discuss the results of computation experiments on different spherepolyhedra packs. The results of experiments show convergence of proposed method. Experiments include investigations of spherepolyhedra packs with different shapes, polydisperse and oriented structures. Presented method would be applied to virtual design of dense materials composed of non-spherical particles.

    Keywords: dense packing, materials modeling, spherepolyhedra.
    Views (last year): 7. Citations: 6 (RSCI).
  3. Mizgulin V.V., Kosulnikov V.V., Kadushnikov R.M.
    The optimization approach to simulation modeling of microstructures
    Computer Research and Modeling, 2013, v. 5, no. 4, pp. 597-606

    The paper presents an optimization approach to microstructure simulation. Porosity function was optimized by numerical method, grain-size model was optimized by complex method based on criteria of model quality. Methods have been validated on examples. Presented new regression model of model quality. Actual application of proposed method is 3D reconstruction of core sample microstructure. Presented results suggest to prolongation of investigations. 

    Keywords: microstructure simulation, dense packing, optimization, 3d reconstruction.
    Views (last year): 4. Citations: 7 (RSCI).

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