Investigation of Destruction of Functional Gradient Barriers at Shockwave Loading

Abstract

Nowadays, functional gradient materials (FGM) are successfully used to manufacture parts and structures which are subject to strains and temperature loadings. Use of FGM as well as other advanced materials to develop and manufacture shock-resistant protective structures is conditioned by continuous upgrade of shock and explosive devices. In this paper, computational investigation of shockwave loading of barriers with strength gradient properties is presented. In particular, the effect of linear change in characteristics responsible for spallation and shear strains over the whole barrier thickness from the surface loaded through its back surface on strain and destruction processes was investigated. The effect on barriers was defined as plane shock wave loading, and as impact of compact steel oblong strikers against the barriers along the normal. A = 45 kDj/kg. 421

Numerical modeling of the destruction of steel plates with a gradient substrate

“…Constitutive equations are given in the form of Prandtl -Reis with Mises flow condition in Orlenko [5]. Some strength properties such as tensile strength and shear modulus are not constant, but dependent on the porosity.…”

“…Under such tasks, one should understand the tasks of deep penetration and through penetration of complex geometry by strikers with structurally heterogeneous structures (heterogeneous, laminated-bonded, blockmodular, etc.). The program complex consists of a viewer program and a solver program and is used as the main research tool [4,5].…”