Eventos Anais de eventos
MECSOL 2022
8th International Symposium on Solid Mechanics
Towards a mechanical response of non-aligned graphene layers by the atomic scale finite element method
Submission Author:
EUCLIDES MESQUITA , SP , Brazil
Co-Authors:
Otávio Tovo, Daniela Damasceno, EUCLIDES MESQUITA
Presenter: EUCLIDES MESQUITA
doi://10.26678/ABCM.MECSOL2022.MSL22-0083
Abstract
A version of the Atomistic Finite Element Method (AFEM) is used to investigate the mechanical properties of bilayer graphene. The AFEM is formulated using the AIREBO potential, which is one of the best existing potentials to simulate hydrocarbons systems such as bilayer graphene, since it considers both covalent and non-bonded interactions. It has recently been reported in the literature that a misalignment of a given angle between the graphene layers has enormous influence on its optical and electrical properties. These properties may change considerably according to the angle of misalignment. But the influence of the angle in the plane relative rotation between the two graphene layers on the mechanical properties of the nano structure has not yet been completely studied. In this article, using the AFEM, equivalent stress-strain curves of a graphene bilayer will be obtained as a function of the misalignment angle between the layers. The role of vacancies of atoms or nano porous on the mechanical properties will also be numerically investigated.
Keywords
Atomistic Finite Element Method, Bilayer graphene, Mechanical Properties, Nanoporous graphene
