▎ 摘　　要

The influence of defects on the relaxation properties of bilayered graphene (BLG) has been studied by molecular dynamics simulation in nanometre sizes. Type and position of defects were taken into account in the calculated model. The results show that great changes begin to occur in the morphology after introducing defects into BLG sheets. Compared with point defects, line defects have a significant effect on the relaxation properties of BLG.