Numerical Modeling of Different Concrete Mixture Panels Resisting Projectile Penetration

Abstract
Penetration depth induced by projectiles through concrete target is an essential design parameter
for fortification structures. Due to the expensive costs of field test experiments, numerical
modeling is considered one of the most efficient procedures to predict the response of concrete
mixture panels under the effect of impact loads.
In the present paper, finite element model (FEM) is proposed to model response of different
concrete mixture panels subjected to the impact load. 3-D nonlinear finite element analysis
(FEA) is used. Seven concrete mixtures are prepared and tested in the present study to obtain the
suitable concrete mixture panels. These concrete mixtures can improve the performance of the
concrete panels to resist projectile penetration. S ilica fume and fly ash are used as additives to
concrete mixtures. Based on plain concrete panel, the experimental projectile results published
in another study are used to verify the results obtained by the proposed 3-D FEM. The finite
element program AUTODYNE-3D is used to model the concrete panels .
The mechanical properties of different concrete mixtures are tested and obtained from
experimental work. There is a good agreement between the results obtaine d by both the 3-D
FEA and the published experimental test. The responses of the proposed concrete panels are
expressed as displacement time history and analyzed and presented. The proposed concrete
mixtures improve the performance of the concrete panels against projectile penetration.