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)

SHELL


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.


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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.


Исследование выполнено за счет гранта Российского научного фонда №24-29-00214, https//rscf.ru/project/24-29-00214/


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