PENETRATION OF METAL-FABRICS COMPOSITES BY SMALL PROJECTILES

Analytical and numerical solutions are presented, describing dynamics and fracture of composite metal-fabric armour penetrated by small projectiles (bullets and fragments). Comparison of one-dimensi onal and spatial axisymmetric models for nonlinear dynamics of a ply is conducted and their capabilities for pr actical calculations are discussed. A computer model for sp atial dynamics of composite armour is described as a basis for a calculation tool specially designed to simulate pen etration processes in actual metal/fabrics shields. Residual parameters of the projectile after perforation of t he primary metal armour are obtained on the basis o f experimental data processing and energy considerations. Comparison of calculation results with test data for actual steel-kevlar shields produced by the Israeli Military Industries Co. shows sufficient applicability of the tool.

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