Abstract
The problem of current spreading across the width of thin foils (in serpentine-type systems) or planar current sheets is considered. The evolution of the current distribution across the width of non-uniform thin conductive layers or foils is calculated using an integrodifferential equation which makes the two-dimensional problem for the magnetic field one-dimensional. An infinite periodic serpentine-type system of planar foils is considered. It is shown that in this system, the current distribution in the foil initially corresponds to its ideal conductivity and then relaxes to a uniform distribution. If the foils are used as opening switches, the current is expected time to get uniformly distributed across their width during current delivery to the load; therefore, the corrections for the nonuniformity of the current distribution in the switches should be small.
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Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2021, Vol. 63, No. 2, pp. 48-60. https://doi.org/10.15372/PMTF20220205.
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Garanin, S.F., Kravets, E.M. CURRENT SPREADING ACROSS THE WIDTH OF THIN FOILS (IN SERPENTINE-TYPE SYSTEMS) OR PLANAR CURRENT SHEETS. J Appl Mech Tech Phy 63, 220–230 (2022). https://doi.org/10.1134/S0021894422020055
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DOI: https://doi.org/10.1134/S0021894422020055