Analysis of stress and strain in the tetrachiral metamaterial with different kinds of unit cell connections

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DOI Доступ к ресурсу на сайте издателя			10.1016/j.prostr.2021.12.071

Title: Analysis of stress and strain in the tetrachiral metamaterial with different kinds of unit cell connections
Creator: Akhmetshin, L. R.
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Smolin, Igor Yu.
Date: 2022
DOI: 10.1016/j.prostr.2021.12.071
Description: Metamaterials are artificially created materials whose unique properties are due to their structure rather than the chemical composition of the base material. The unit cells form the basis of a metamaterial. When creating the metamaterial, one should distinguish the methods of connecting its unit cells. The paper considers two methods of unit cell connection in a threedimensional metamaterial—joining and overlapping. Connecting the cells in the metamaterial by joining method may lead to a differently directed rotation of the rings, which will have a negative effect on the entire sample of the metamaterial. In the case of the other connection method, there is no differently directed rotation, so it would appear reasonable that creating a sample of a metamaterial by this method would achieve greater values of twist. The asymmetric deformation pattern is investigated in this work. For the two methods considered, also different results were obtained on stress distribution and strain localization in the sample under uniaxial loading. In the system of two cells in the metamaterial obtained by the joining method, an additional center of localization of deformation occurs at the junction of the two edges, which make up the tetrachiral element

Created: 16-01-2023

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Физико-технический факультет Analysis of stress and strain in the tetrachiral metamaterial with different kinds of unit cell connections