Abstract:
This study investigates the high-speed impact behavior of steel projectiles on ceramic composite armor using numerical simulations in Autodyn-3D, with a strong focus on hydrodynamic modeling via the Smooth Particle Hydrodynamics (SPH) method. The ceramic plate is modeled using SPH to capture its brittle failure and progressive crushing under intense pressure, while the Kevlar/Epoxy backplate and steel projectile are modeled with Lagrangian elements. The simulation incorporates detailed material models including the Mohr-Coulomb strength model and cumulative damage functions to evaluate stress propagation, fracture initiation, and energy dissipation. Hydrodynamic behavior plays a central role in characterizing pressure-dependent strength response and accurately resolving the projectile’s penetration dynamics through parametric control of impact geometry and material deformation.
