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.

中文翻译：

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爆炸载荷作用下应变率对金属塑圆柱壳动态强度影响的数值分析

基于壳的非经典理论，将壳作为三维体的总能量泛函最小化，得到了金属-塑料圆柱壳动力学方程的能量一致解析系统。求解公式化初始边界值问题的数值方法基于显式变分差分格式。数值解与实验数据的对比结果证实了该方法的有效性。分析了各种增强结构的均质玻璃纤维圆柱壳和双层金属塑料壳的极限变形能力和强度。