Materials science. Dynamic mechanical behavior of multilayer graphene via supersonic projectile penetration. Academic Article uri icon

abstract

  • Multilayer graphene is an exceptional anisotropic material due to its layered structure composed of two-dimensional carbon lattices. Although the intrinsic mechanical properties of graphene have been investigated at quasi-static conditions, its behavior under extreme dynamic conditions has not yet been studied. We report the high-strain-rate behavior of multilayer graphene over a range of thicknesses from 10 to 100 nanometers by using miniaturized ballistic tests. Tensile stretching of the membrane into a cone shape is followed by initiation of radial cracks that approximately follow crystallographic directions and extend outward well beyond the impact area. The specific penetration energy for multilayer graphene is ~10 times more than literature values for macroscopic steel sheets at 600 meters per second.

published proceedings

  • Science

altmetric score

  • 351.674

author list (cited authors)

  • Lee, J., Loya, P. E., Lou, J., & Thomas, E. L.

citation count

  • 243

complete list of authors

  • Lee, Jae-Hwang||Loya, Phillip E||Lou, Jun||Thomas, Edwin L

publication date

  • November 2014