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 Stress–strain curves of graphene sheets with different grain boundaries: the zigzag-oriented GBs at tilt angles of (a) 5.5° and (b) 13.2° the armchair-oriented GBs at tilt angles of (c) 15.8° and (d) 28.7°. The red dashed line indicates the ultimate stress of pristine graphene stretched in armchair direction at 300 K.
