Epic penetration simulation
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17 Sep Modeling and Simulation of Ballistic Penetration of . The computational tool implemented in this study is the EPIC (Elastic Plastic Impact.
Mathematical Problems in Engineering
17 Sep EPIC (Elastic Plastic Impact Calculation) finite element code. [20] ( for ballistic penetration simulations of layered targets, as shown, for.
Description:Materials and constitutive models. Problem Statement In particular, the penetrator-target configuration simulated in this work depicts that examined in experiments of [ 1 ]. For a general finite deformation mechanics problem involving an elastic-inelastic solid, the deformation gradient and volume ratio being the reference gradient operator, being the second-order unit tensor, and being the particle displacement vector The deformation gradient is decomposed multiplicatively into elastic superscript and inelastic or plastic superscript parts. Abstract Numerical simulations and analysis of ballistic impact and penetration by tungsten alloy rods into composite targets consisting of layers of aluminum nitride ceramic tile s , polymer laminae, and aluminum backing are conducted over a range of impact velocities on the order of 1. A thin polyurethane laminate separates neighboring tiles in the experiments when the target contains multiple tiles. As discussed in detail later, the penetrator-target configuration studied in this work duplicates that featured in ballistic experiments of Yadav and Ravichandran [ 1 ]. In practice, for isotropic solids considered herein, 5 is replaced by distinct constitutive equations for pressure an equation-of-state depending on and deviatoric stress components.
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