Atomic Simulation of Nanoindentation on the Regular Wrinkled Graphene Sheet.

ABSTRACT: Surface landscapes have vague impact on the mechanical properties of graphene. In this paper, single-layered graphene sheets (SLGS) with regular wrinkles were first constructed by applying shear deformation using molecular dynamics (MD) simulations and then indented to extract their mechanical properties. The influence of the boundary condition of SLGS were considered. The wrinkle features and wrinkle formation processes of SLGS were found to be significantly related to the boundary conditions as well as the applied shear displacement and velocity. The wrinkling amplitude and degree of wrinkling increased with the increase in the applied shear displacements, and the trends of wrinkling wavelengths changed with the different boundary conditions. With the fixed boundary condition, the degree

SUBMITTER: Wang R 

PROVIDER: S-EPMC7084966 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature