Author: "Akhmetshin, L. R." / Publication Year Range: Last 50 years / Topic: computer simulation and unit cell - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"Akhmetshin, L. R."' showing total 2 results

Start Over Author "Akhmetshin, L. R." Topic computer simulation Topic unit cell Publication Year Range Last 50 years

Author: Akhmetshin, L. R. and Smolin, I. Yu.
Subjects: *UNIT cell, *METAMATERIALS, *YOUNG'S modulus, *FINITE element method, *COMPUTER simulation
Abstract: A mechanical metamaterial is considered using mathematical modeling and computer simulation. Its structure consists of tetrachiral elements providing a non-conventional behavior under uniaxial tension/compression. The deformation behavior of the metamaterial is investigated on its solid computer model using the finite element method. A uniaxial loading of the mechanical metamaterial sample is simulated as a quasistatic problem within the linear elasticity theory. Hooke's law for an isotropic material is chosen as the constitutive equation for the base material. A new method of overlapping is proposed for connecting the unit cells of a three-dimensional metamaterial. It allows achieving the maximum twisting effect. The graphs of dependence of the angle of twist and effective Young's modulus on the parameters characterizing the unit cell structure of the metamaterial are presented. [ABSTRACT FROM AUTHOR]
Published: 2024
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Author: Akhmetshin, L. R., Iokhim, K. V., Panin, Victor E, and Fomin, Vasily M
Subjects: *BEHAVIORAL assessment, *NUMERICAL analysis, *DEFORMATIONS (Mechanics), *ANALYTICAL solutions, *METAMATERIALS, *COMPUTER simulation, *DEFORMATION of surfaces, *UNIT cell
Abstract: The paper investigates the deformation behavior of a mechanical metamaterial. The metamaterial is made up of tetrachiral elements. An analytical solution is obtained for the deformation behavior of a unit cell of the metamaterial depending on its parameters. The results of the analytical solution were used for numerical modeling. The computer FEM model was built using beam elements. The numerical solution of the mechanical loading of the metamaterial was performed in the static case of the linear theory of elasticity. In the course of numerical simulation of the uniaxial loading of the mechanical metamaterial, it was found that the specimen inclines when elongated. The difference in inclination angles between the right and left sides of the specimen is probably related to the rotation of the ring in the tetrachiral structure. [ABSTRACT FROM AUTHOR]
Published: 2020
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