Yu B Koloshenko (Komsomolsk-na-Amure State University) :


Articles:

539.5, 621.74 Modeling the durability of casting shell molds under external force and thermal loads

Odinokov V. I. (Komsomolsk-na-Amure State University), Evstigneev A. I. (Komsomolsk-na-Amure State University), Dmitriyev E. A. (Komsomolsk-na-Amure State University), Koloshenko Y. B. (Komsomolsk-na-Amure State University), Evstigneeva A. A. (Komsomolsk-na-Amure State University), Petrov V. V. (Komsomolsk-na-Amure State University)


doi: 10.18698/2309-3684-2024-4-3151


A numerical scheme and algorithm have been developed for calculating the stress-strain state (SSS) of a shell casting mold with an internal cavity, subjected to external force and thermal loads. The calculations are based on the equations of linear elasticity theory, heat conduction, and a validated numerical method. The study examines a shell casting mold (construction) bounded by orthogonal families of surfaces. As an example, a specific problem is presented involving the production of a spherical cast billet in a metallic shell mold, both in the absence and presence of thermal grooves on the contact surface between the mold and the liquid metal (steel). The calculation results are provided in the form of diagrams of normal stress fields, displacements, and temperatures across the sections of the spherical mold. An assessment is made of the effectiveness of applying grooves to the inner surface of the mold.


Одиноков В. И., Евстигнеев А. И., Дмитриев Э. А., Колошенко Ю. Б., Евстигнеева А. А., Петров В. В. Моделирование стойкости литейных оболочечных форм, находящихся под действием внешней силовой и тепловой нагрузки. Математическое моделирование и численные методы, 2024, № 4, с. 31–51.


539.5, 621.74 Numerical modeling of the effect of high gas pressure inside the mold on the solidification and cooling of a steel casting

Evstigneev A. I. (Komsomolsk-na-Amure State University), Odinokov V. I. (Komsomolsk-na-Amure State University), Potianikhin D. A. (Komsomolsk-na-Amure State University), Koloshenko Y. B. (Komsomolsk-na-Amure State University)


doi: 10.18698/2309-3684-2025-4-1948


A numerical scheme and algorithm for calculating the stress-strain state (SSS) of a casting during its solidification in a spherical metal casting mold installed in a spherical die subjected to thermal stress have been developed. The calculation is based on the equations of linear elasticity theory, thermal conductivity, and an approved numerical method. A composite spherical casting structure bounded by orthogonal families of surfaces is considered. An example is the problem of solidification and cooling of a spherical steel casting in a metal mold, which is mounted in a matrix. The calculation results are presented in the form of diagrams of normal stresses, displacements, and temperatures along the cross-section of the spherical structure. The analysis of the obtained calculation results is given


Евстигнеев А.И., Одиноков В.И., Потянихин Д.А., Колошенко Ю.Б. Численное моделирование влияния внутриформенного высокого газового давления на затвердевание и охлаждение стальной отливки. Математическое моделирование и численные методы, 2025, № 4, с. 19–48.