Abstract: “In this work has described a methodology of the using of Nanomechanics in practice. On the basis of Nanomechanics principles, the potential force field in nanostructure is investigated here. The nanostructures of the materials are described and the differential equations of the mechanical motion of nanoparticles in potential force field are written and have been solved the using of the Lennard-Jones's potential. The theoretical expressions of the modulus of elasticity of materials are deduced and have been constructed corresponding diagrams for practical usage. The method for definition of mechanical properties of materials in nano-dimensional level is developed. Keywords: Nanomechanics, Mechanical system, Equation of motion, Lennard-Jones potential, Crystal lattices, Mechanical properties of materials.”

Keywords: Nanomechanics, Mechanical system, Equation of motion, Lennard-Jones potential, Crystal lattices, Mechanical properties of materials.