Determination of carafene elasticity constants by the molecular dynamics method

Using the molecular dynamics method, the rigidity constants of five structural configurations of grapheme-carbon monolayer in which the atoms are arranged in a special way and have $sp$- and $sp^2$-hybritization were calculated. It has been established that the arrangement of atoms in the graphene layer has a significant effect on the stiffness constants. It was found that the $\gamma_2$-carafe has the highest stiffness constant $c_{11}$ (1091 GPa), and the $\alpha$-carafe has the smallest (258 GPa). It is shown that the $\beta_3$-carafe and $\gamma_2$-carafe are highly anisotropic structures.