دورية أكاديمية
Optimal design of auxetic hexachiral metamaterials with local resonators
| العنوان: | Optimal design of auxetic hexachiral metamaterials with local resonators |
|---|---|
| المؤلفون: | Bacigalupo A, Lepidi M, Gambarotta L, Gnecco G |
| المساهمون: | Bacigalupo, A, Lepidi, M, Gambarotta, L, Gnecco, G |
| سنة النشر: | 2016 |
| المجموعة: | Archivio della ricerca della Scuola IMT Alti Studi Lucca |
| مصطلحات موضوعية: | auxetic materials, chirality, wave propagation, band gap optimization, method of moving asymptotes |
| الوصف: | A parametric beam lattice model is formulated to analyze the propagation properties of elastic inplane waves in an auxetic material based on a hexachiral topology of the periodic cell, equipped with inertial local resonators. The Floquet–Bloch boundary conditions are imposed on a loworder linear model, suitably reduced to the only dynamically active degrees-of-freedom through a quasistatic stiffness condensation. Since the resonators can be designed to open and shift band gaps, an optimal design, focused on the largest possible gap in the low-frequency range, is achieved by solving a maximization problem in the bounded space of the significant geometrical and mechanical parameters. A local optimized solution, for a the lowest pair of consecutive dispersion curves, is found by employing the globally convergent version of the method of moving asymptotes, combined with Monte Carlo and quasi-Monte Carlo multi-start techniques. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/wos/WOS:000375589600012; volume:25; issue:5; firstpage:1; lastpage:20; numberofpages:20; journal:SMART MATERIALS AND STRUCTURES; http://hdl.handle.net/20.500.11771/6647Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84964607571; http://arxiv.org/ftp/arxiv/papers/1510/1510.04543.pdfTest; http://iopscience.iop.org/article/10.1088/0964-1726/25/5/054009/pdfTest |
| DOI: | 10.1088/0964-1726/25/5/054009 |
| DOI: | 10.1088/0964-1726/25/5/054009/pdf |
| الإتاحة: | https://doi.org/20.500.11771/6647Test https://doi.org/10.1088/0964-1726/25/5/054009Test https://hdl.handle.net/20.500.11771/6647Test http://arxiv.org/ftp/arxiv/papers/1510/1510.04543.pdfTest |
| حقوق: | info:eu-repo/semantics/closedAccess |
| رقم الانضمام: | edsbas.71501518 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1088/0964-1726/25/5/054009 |
|---|