Researchers from the Los Alamos National Laboratory have developed 3D-printed plastic cubes with built in fractal voids that can disperse shockwaves.

Controlling where the voids are placed within the 3D-printed plastic cubes enabled the researchers to design material that could potentially be used to develop lightweight armor or material that can endure explosions and other impacts.

Simulations show how fractal structures of increasing complexity dissipate energy from shockwaves. Source: Los Alamos National Labortory

To determine the effectiveness of the material, the team tested the cubes against impacts fired at the material at speeds approaching 670 miles per hour. According to the team, the cubes with built-in fractal voids dispersed the shocks roughly five times better than solid cubes comprised of the same material.

Researchers envision that in addition to a possible lightweight armor, the material could potentially be used to fortify vehicles, helmets or other protective gear.

The research appears in AIP Advances.