Finite temperature effect on mechanical properties of graphene sheets with various grain boundaries
Ge Yong†, 
, Sun Hong-Xiang, Guan Yi-Jun, Zeng Gan-He
, Sun Hong-Xiang, Guan Yi-Jun, Zeng Gan-He Geometric structures of graphenes with different GBs before their cracks at temperature of 300 K: the zigzag-oriented GBs at tilt angles of (a) 5.5° and (b) 13.2° (c) the armchair-oriented GB at a tilt angle of 15.8°. The defects form due to the bonds’ breaking marked with dotted lines.
