Abstract
The two-dimensional nonlinear continuum expressions for the kinetic and potential energies are obtained for nonlinear diatomic lattice. The linear part of the energy is reconstructed using a continuum limit of the two-dimensional discrete model of the lattice. The discrete model considers neighboring spring-like interactions between masses in the lattice for derivation of equations of motion. A connection between the parameters of the lattice and the constants of the continuum model is established. The nonlinear part is added into the continuum model directly in a phenomenological manner. The expressions obtained are useful for finding a solution of a boundary value nonlinear problem.
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Acknowledgements
The work has been supported by the Russian Foundation for Basic Researches, grant No 17-01-00230-a. It was also partially supported by the grant 16-01-00068-a of the Russian Foundation for Basic Researches.
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Porubov, A.V. (2018). Two-Dimensional Modeling of Diatomic Lattice. In: dell'Isola, F., Eremeyev, V., Porubov, A. (eds) Advances in Mechanics of Microstructured Media and Structures. Advanced Structured Materials, vol 87. Springer, Cham. https://doi.org/10.1007/978-3-319-73694-5_15
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DOI: https://doi.org/10.1007/978-3-319-73694-5_15
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