Morphology-Controlled Tensile Mechanical Characteristics in Graphene Allotropes.

ABSTRACT: A number of graphene allotropes constructed by sp³, sp², and sp hybrid orbitals have recently been proposed to provide the broad potential for practical applications. Here, using molecular dynamics simulation, the structural and tensile characteristics of nine distinct graphene allotropes have been investigated to understand their morphology-controlled mechanical properties. Results show that the averaged out-of-plane displacement is independent of nonhexagons while being dominated by the arrangement of carbon polygons on the sheets. Each sheet possesses unique surface morphology and in-plane tensile properties that significantly vary with morphology and anisotropic crystalline orientation. Brittle, semibrittle, or ductile failure is observed, depending on the evoluti

SUBMITTER: Sui C 

PROVIDER: S-EPMC6641645 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature