Optimum SPH Parameters for Ballistic Impact on Ceramic Tiles: A Parametric Study

Smoothed particle hydrodynamics (SPH) is a powerful tool for modelling industrial situations with massive deformations. One downside of the SPH approach is its high CPU cost when compared to traditional finite elements. To undertake a parametric analysis of CLSH (Smoothening length constant) and “Hmax” (Maximum smoothening length), a pre-validated FE Lagrangian model of high velocity projectile impact is chosen. The retardation of projectile velocity and kinetic energy, deformation of projectile, crack propagation in ceramic, and computational resources are chosen as the standards of comparison between the finite element Lagrangian model and a set of SPH models with different parameters.