title: Mechanical characterization of nanoindented graphene via molecular dynamics simulations.
abstract: The mechanical behavior of graphene under various indentation depths, velocities, and temperatures is studied using molecular dynamics analysis. The results show that the load, elastic and plastic energies, and relaxation force increased with increasing indentation depth and velocity. Nanoindentation induced pile ups and corrugations of the graphene. Resistance to deformation decreased at higher temperature. Strong adhesion caused topological defects and vacancies during the unloading process.
authors.affiliation: Department of Mechanical Engineering, National Kaohsiung University of Applied Sciences, 415 Chien Kung Rd,, Kaohsiung 807, Taiwan. fang.tehua@msa.hinet.net.
authors.forename: Te-Hua
authors.initials: TH
authors.lastname: Fang
authors.forename: Tong Hong
authors.initials: TH
authors.lastname: Wang
authors.forename: Jhih-Chin
authors.initials: JC
authors.lastname: Yang
authors.forename: Yu-Jen
authors.initials: YJ
authors.lastname: Hsiao