Size Dependence of the Nonlinear Elastic Softening of Nanoscale Graphene Monolayers under Plane-Strain Bulge Tests: A Molecular Dynamics Study
Figure 3
(a) The response of the Å graphene monolayer to pressure induced by hydrogen molecules. As the pressure increases, the graphene deflects more easily, indicating softening behavior. (b) MD results of (a) are compared with classical elasticity solutions for large-deflection bulge tests. Typical microscale linear elastic thin films follow curves. Nanoscale MD simulation reveals that the graphene monolayer is easier to deflect at much lower pressure than elasticity solutions.
