Molecular simulations of stress wave propagation and perforation of graphene sheets under transverse impact

Transverse impact behaviour of graphene sheet (GS) has been studied using molecular dynamics (MD) simulations. One, two and three layers of GS have been impacted with a fullerene rigid projectile in the impact velocity range: 3.5–7.5 km/s. LAMMPS is used for MD simulations using the AIREBO force field. Kinetic energy, displacement, velocity and perforation resistance force of the projectile have been investigated to understand the perforation...