graphene, mechanical moduli, molecular mechanics method.

Sets of material and geometric parameters of the DREIDING force field and beam element, which accurately reproduce the mechanical modules of graphene in the framework of the standard MM method and the MSM method, are obtained. These methods are implemented in computer codes Pioner and MSC.Marc, respectively. Computer simulation of the frequencies and modes of natural vibrations of a single-layer graphene sheet showed that both the frequencies and the corresponding modes of natural vibrations obtained by both methods are close to each other, as well as close to the frequencies and modes of vibration of an almost square continuous plate simulating a single-layer graphene sheet.

Korobeynikov Sergey Nikolaevich, D.Sc., Head of Laboratory, Lavrentyev Institute of Hydrodynamics of the Siberian Branch of the RAS, Novosibirsk, Russia. Alyokhin Vladimir Vitalyevich, D.Sc., Leading Researcher, Lavrentyev Institute of Hydrodynamics of the Siberian Branch of theRAS, Novosibirsk, Russia. Babichev Aleksey Vladimirovich, PhD, Major Researcher, Sobolev Institute of Geology and Mineralogy of the Siberian Branch of the RAS, Novosibirsk, Russia.