Investigating Projectile Penetration Of
Concrete Blocks Reinforced By Ceramics
Author(s)
R. Tawadrous, W. Attia & M. Laissy
Abstract
Numerical simulation of the response of concrete structures to impact loading is
an important tool in both the design of hardened protective structures and in the
planning for effective attacks against such structures. This paper presents
the development of an accurate finite-element model using AUTODYN to study
the response of concrete structures reinforced by ceramic (Al2O3-99.7%) rods
and plates exposed to 23 mm projectile. Concrete and ceramic are modelled
using a combined mesh and meshfree numerical technique. The used meshfree
Lagrangian technique (SPH) is to overcome problems of mesh tangling and
remove the requirement for the use of erosion algorithms. The technique also
allows an explicit representation of Ceramic through (SPH) element formulation.
In such a model, the concrete region local to the penetrator, which experiences
large deformation, is represented using the SPH solver. The modelled penetrator
and the concrete further away from the impact observed to undergo little or no
deformation by using the Lagrange solver.
The aim of this paper is to study numerically the penetration resistance of
concrete structures reinforced by ceramic (Al2O3-99.7%). The main findings
show an enhancement in the penetration resistance of about 45% while using
ceramic. Here, we used ceramic because of its electric, magnetic, and thermal
insulation. Hence, we can use concrete structures reinforced by ceramic in many
types of medical, nuclear, power generating and electronic applications.
Keywords: penetration, concrete, ballistic impact, ceramic, AUTODYN3D.
Keywords
penetration, concrete, ballistic impact, ceramic, AUTODYN3D.
Related Book
Other papers in this volume
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