Explosive Loading of Deformable Gas Permeable Axisymmetric Structural Elements
E. G. Glazova, A. Yu. Konstantinov, A. V. Kochetkov, S. V. Krylov
Research Institute of Mechanics, Nizhny Novgorod, 603950 Russia
Keywords: металлические сетки, многослойные камеры, взаимопроникающие континуумы, упругопластическое деформирование, взрыв, схема Годунова, metal meshes, multilayer shells, interpenetrating continua, elastoplastic deformation, explosion, Godunov scheme
Abstract
A mathematical model is proposed which describes the interrelated processes of unsteady elastoplastic deformation of stacks of woven metal wire meshes and wave processes in pore gas in a two-dimensional axisymmetric approximation. The nonlinear equations of the dynamics of two interpenetrating continua are solved numerically using a modified Godunov scheme. The problem of explosive loading of a multilayer shell with an internal permeable deformable layer is solved. The results of numerical solutions are compared with experimental data. The influence of the gas-permeable layer on the shell deformation is determined.
DOI: 10.1134/S0021894416050138
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