Optimization of spider web-inspired phononic crystals to achieve tailored dispersion for diverse objectives
| Autor: | Marco Miniaci, Vinícius F. Dal Poggetto, Nicola M. Pugno, Federico Bosia |
|---|---|
| Přispěvatelé: | Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-JUNIA (JUNIA), Acoustique - IEMN, Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-JUNIA (JUNIA)-Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-JUNIA (JUNIA), EU H2020 FET Open 'Boheme' Grant No. 863179., European Project: 863179,H2020,H2020-FETOPEN-2018-2019-2020-01,BOHEME(2020), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), Acoustique - IEMN (ACOUSTIQUE - IEMN), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-JUNIA (JUNIA) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Optimization
Materials science Band gap Wave propagation Acoustics Spider web-inspired geometry Bioinspired phononic crystals and metamaterials 02 engineering and technology Thread (computing) 01 natural sciences [SPI]Engineering Sciences [physics] 0103 physical sciences Dispersion (optics) General Materials Science Point (geometry) 010306 general physics Materials of engineering and construction. Mechanics of materials Spider Mechanical Engineering Bioinspired phononic crystals and Bragg's law 021001 nanoscience & nanotechnology Vibration metamaterials Mechanics of Materials TA401-492 0210 nano-technology |
| Zdroj: | Materials and Design Materials and Design, Elsevier, 2021, 209, pp.109980. ⟨10.1016/j.matdes.2021.109980⟩ Materials & Design Materials & Design, 2021, 209, pp.109980. ⟨10.1016/j.matdes.2021.109980⟩ Materials & Design, Vol 209, Iss, Pp 109980-(2021) |
| ISSN: | 0264-1275 0261-3069 |
| DOI: | 10.1016/j.matdes.2021.109980⟩ |
| Popis: | International audience; Spider orb webs are versatile multifunctional structures with optimized mechanical properties for prey capture, but also for transmitting vibrations. The versatility of such a system mainly derives from its variable geometry, which can be effectively used to design phononic crystals, thus inhibiting wave propagation in wide frequency ranges. In this work, the design of spider web-inspired singlephase phononic crystals through selective variation of thread radii and the addition of point masses is proposed, determined through the use of optimization techniques. The obtained results show that spider web geometry displays a rich vibration spectrum, which by varying its the geometric characteristics and adding localized masses can be tailored to manipulate wave modes, and the resulting two-dimensional phononic crystals present wide complete band gaps generated by Bragg scattering and local resonances. |
| Databáze: | OpenAIRE |
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