EFFECT OF UNIT CELL HEIGHT ON THE BALLISTIC PERFORMANCE OF THE BODY-CENTERED LATTICE STRUCTURES

Lattice structures, produced by metal additive manufacturing technology, can be a potential alternative in armor applications, which are important parts of defense technologies due to their shock wave damping, energy absorption and light-weight properties. Despite the fact that protection lattice structures against explosives has been frequently investigated literature, perforation performance is rarely studied. In this research, numerical ballistic penetration tests were carried out with Johnson-Cook strength failure model parameters using LS-DYNA software. AlSi10Mg alloy was chosen as material, high ability. Both width length 4 mm for body-centered structure, while eight different cell height (3, 4, 5, 6, 7, 8, 9 15 mm) used unit parameters. The results show could improved optimizing structures.