TY - JOUR

T1 - Deformation and fracture processes in pre-cracked graphene

AU - Kochnev, A. S.

AU - Ovid'Ko, I. A.

AU - Semenov, B. N.

AU - Sevastyanov, Ya A.

N1 - Publisher Copyright: © 2017 Advanced Study Center Co. Ltd.

PY - 2017

Y1 - 2017

N2 - Deformation and fracture processes in pre-cracked graphene sheets are examined by molecular dynamics simulations. Thin and thick pre-existent cracks in graphene sheets are considered which are generated through removal of one and two (neighboring) chains of carbon atoms, respectively, from a pristine sheet. Tensile tests of graphene sheets with these cracks oriented along zigzag directions were performed. Crack evolution/growth processes were observed and described. Also, for each graphene sheet tested, we revealed stress-strain dependence, maximum elastic strain, maximum plastic strain, and tensile strength.

AB - Deformation and fracture processes in pre-cracked graphene sheets are examined by molecular dynamics simulations. Thin and thick pre-existent cracks in graphene sheets are considered which are generated through removal of one and two (neighboring) chains of carbon atoms, respectively, from a pristine sheet. Tensile tests of graphene sheets with these cracks oriented along zigzag directions were performed. Crack evolution/growth processes were observed and described. Also, for each graphene sheet tested, we revealed stress-strain dependence, maximum elastic strain, maximum plastic strain, and tensile strength.

KW - TILT GRAIN-BOUNDARIES

KW - MECHANICAL-PROPERTIES

KW - INTRINSIC STRENGTH

KW - BRITTLE BEHAVIOR

KW - NANOCRYSTALLINE

KW - DEFECTS

KW - CRACK

KW - DUCTILE

KW - SHEETS

UR - http://www.scopus.com/inward/record.url?scp=85028441985&partnerID=8YFLogxK

M3 - Article

VL - 50

SP - 24

EP - 30

JO - Reviews on Advanced Materials Science

JF - Reviews on Advanced Materials Science

SN - 1606-5131

IS - 1-2

ER -