Programmable behavior of the metamaterial by kind unit cells connection

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Abstract

The paper is devoted to the numerical analysis of uniaxial loading of a sample of the mechanical metamaterial. The structure of the mechanical metamaterial is constructed of a ring and four ligaments, which make up a tetrachiral structure. The peculiarity of such a structure consists in torsion of the sample under the force load. Two methods of connecting cells in the metamaterial are considered adjoining and overlapping. The adjoining method of joining cells increases the thickness of the internal structure of the sample, which allows us to consider it as a topological defect of the metamaterial. The overlapping method saves the base material from which the tetrachiral structure is constructed. Differences in the structure when constructing a three-dimensional sample result in a significant change in the characteristics of the sample. Numerical solution of the problem is performed in a three-dimensional formulation using the finite element method. The constitutive relation describing the behavior of the model corresponds to Hooke's law. Numerical simulation of uniaxial loading made it possible to obtain the results of mechanical response and to analyze the effective properties of metamaterials. A topological defect in the form of a thickening of the internal structure elements led to a difference in the linear dimensions of the two samples. The increased thickness of the unit cell connection elements resulted in a decrease in the effective density of the metamaterial sample. The same sample showed a triple increase in the value of the elastic modulus. The greater ability to resist deformation resulted in a reduced twist effect compared to the sample whose cells were joined by the overlapping method. The results obtained will make it possible to program the mechanical behavior and properties of the metamaterial sample.

Keywords

mechanical metamaterialcell structurecell connectionchiralitynumerical simulationfinite element methodelastic deformationstructure-properties relationshiptwisteffective properties.

Bibliography

  1. 1.Ullah A., Kiuno H., Kubo A., D'Addona D.M. A system for designing and 3D printing of porous structures CIRP Annals. – 2020. – Vol. 69. – No. 1. – PP. 113-116. doi 10.1016j.cirp.2020.04.088 Scholar
  2. 2.Tan T., Yan Zh., Zou H., Ma K., Liu F., Zhao L., Peng Zh., Zhang W. Renewable energy harvesting and absorbing via multi-scale metamaterial systems for Internet of things Applied Energy. – 2019. – Vol. 254. – No. 113717. doi 10.1016j.apenergy.2019.113717 Scholar
  3. 3.Bhullar S.K., Lala N.L., Ramkrishna S. Smart biomaterials - a review. Review on advanced Materials Science. – 2015. – Vol. 40. – PP. 303–314. Scholar
  4. 4.Akhmetshin L.R., Smolin I.Yu. Influence of unit cell parameters of tetrachiral mechanical metamaterial on its effective properties Nanoscience and Technology An International Journal. – 2020. – Vol. 11. – No. 3. – PP. 265-273. doi 10.1615NanoSciTechnolIntJ.2020033737 Scholar
  5. 5.Meeussen A.S., Oğuz E.C., Shokef Y., Hecke M., Topological defects produce exotic mechanics in complex metamaterials Nature Physics. – 2019. – Vol. 16. – P. 307. doi 10.1038s41567-019-0763-6 Scholar
  6. 6.Meeussen A.S., Oğuz E.C., Hecke M., Shokef Y. Response evolution of mechanical metamaterials under architectural transformations New Journal of Physics. – 2020. – Vol. 22. – No. 023030. doi 10.10881367-2630ab69b5 Scholar
  7. 7.Akhmetshin L.R., Smolin I.Yu. Analysis of Stress and Strain in the Tetrachiral Metamaterial with Different Kinds of Unit Cell Connections Procedia Structural Integrity. – 2022. – Vol. 35 – PP. 247-253. doi 10.1016j.prostr.2021.12.071 Scholar
  8. 8.Frenzel T., KadicM., Wegener M., Three-dimensional mechanical metamaterials with a twist Science. – 2017. – Vol. 358. – No. 6366. – P. 1072. doi 10.1126science.aao4640 Scholar
  9. 9.Bryukhanov I.A., Gorodtsov V.A., Lisovenko D.S. Atomistic Modeling of the Mechanical Properties of Chiral Metallic Nanotubes Physical Mesomechanics. – 2020. – Vol. 23. – No. 6. – PP. 477–486. doi 10.1134S102995992006003X Scholar
  10. 10.Surjadi J.U., Gao L., Du H., Li X., Xiong X., Fang N.X., Lu Y. Mechanical metamaterials and their engineering applications Advanced Engineering Materials. – 2019. – Vol. 21. – No. 1800864. doi 10.1002adem.201800864 Scholar

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Article information

Published
29 May 2023
Issue date
29 May 2023
Issue
No. 1 (2023)
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