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This article is cited in 1 scientific paper (total in 1 paper)
The family of mathematical models to describe the metal conductors motion in an electromagnetic field
A. S. Rodin
Abstract:
The modeling of metal conductors acceleration in an electromagnetic field in a two-dimensional approximation is executed. A family of mathematical models for describing the motion of a body is presented: a model of a thermoelastoplastic body (for the case of large deformations), a model of a viscous compressible liquid and a mixed model that includes two previous models for different phase states of matter. A mathematical model of electromagnetic processes is presented, which allows to ensure the flow of total currents along the cross-sections of conductors. Numerical algorithms based on the finite element method are presented. The described models are used to solve the problem of accelerating the aluminum cylindrical shell to a speed of about 8 km/s. The results obtained for different models were compared with each other, as well as with known calculated and experimental results published in the literature.
Keywords:
thermomechanics, large deformations, elastoplastic body, compressible viscous liquid, electromagnetic acceleration.
Citation:
A. S. Rodin, “The family of mathematical models to describe the metal conductors motion in an electromagnetic field”, Keldysh Institute preprints, 2023, 054, 32 pp.
Linking options:
https://www.mathnet.ru/eng/ipmp3186 https://www.mathnet.ru/eng/ipmp/y2023/p54
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