Abstract
Based on the nonclassical theory of shells, an energy-consistent resolving system of dynamics equations for metal-plastic cylindrical shells is obtained by minimizing the total-energy functional of a shell as a three-dimensional body. The numerical method for solving the formulated initial-boundary-value problem is based on an explicit variational-difference scheme. The validity of the method is confirmed by the results of comparison of numerical solutions and experimental data. The ultimate deformability and strength of homogeneous fiberglass cylindrical shells and double-layer metal-plastic shells are analyzed for various reinforcement structures.
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Original Russian Text © N.A. Abrosimov, L.A. Igumnov, N.A. Novosel’tseva.
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Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 61, No. 2, pp. 130–141, March–April, 2020.
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Abrosimov, N.A., Igumnov, L.A. & Novosel’tseva, N.A. Numerical Analysis of the Effect of Strain Rate on the Dynamic Strength of Cylindrical Metal-Plastic Shells under Explosive Loading. J Appl Mech Tech Phy 61, 267–276 (2020). https://doi.org/10.1134/S0021894420020133
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DOI: https://doi.org/10.1134/S0021894420020133