The mechanical behavior of graphene under in-plane shear is studied using molecular dynamics simulations.We show that the shear behavior of chiral graphene is dependent on the loading direction due to its structural a...The mechanical behavior of graphene under in-plane shear is studied using molecular dynamics simulations.We show that the shear behavior of chiral graphene is dependent on the loading direction due to its structural asymmetry.The maximum shear failure strain of graphene in one direction may be 1.7 times higher than that in the opposite direction.We discuss also the influence of the cut-off parameters on the calculations.Our findings are useful for the understanding of mechanical behavior of graphene and the potential applications of graphene in nanodevices.展开更多
基金supports from the Graduate Student Program of Shanghai University (Grant No.SHUCX101079)supported by the National Natural Science Foundation of China (Grant No.11172160)+2 种基金Fok Ying Tung Education Foundation (Grant No.121005)Shanghai Shuguang Program (Grant No. 08SG39),Shanghai Rising Star Program (Grant No. 09QH1401000)Shanghai Leading Academic Discipline Project (Grant No. S30106)
文摘The mechanical behavior of graphene under in-plane shear is studied using molecular dynamics simulations.We show that the shear behavior of chiral graphene is dependent on the loading direction due to its structural asymmetry.The maximum shear failure strain of graphene in one direction may be 1.7 times higher than that in the opposite direction.We discuss also the influence of the cut-off parameters on the calculations.Our findings are useful for the understanding of mechanical behavior of graphene and the potential applications of graphene in nanodevices.
