Pressure history in hydrodynamic ram (HRAM) by using FEM-SPH approach

This paper presents the coupling of finite element method (FEM) with smoothed particle hydrodynamics (SPH) to simulate the impact in hydrodynamic ram (HRAM). The main objective was to determine the pressure history by specific particle, which was a new point of view in HRAM study. Commonly, pressure history was obtained by many particles which located at the same location but at different time. Fragment simulating projectile (FSP) with velocity of 972 m/s was employed to impact water-filled tank. For validation purpose, two parameters i.e. mode of failure and wall deformation were employed. Good agreement was observed. On top of pressure history result, pressure and location of the particle at various times were presented.