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Communication Dans Un Congrès Année : 2017

Design and experimental validation of a hierarchical auxetic rectangular perforated metamaterial

Résumé

The understanding of wave propagation in a metamaterial with hierarchical, auxetic rectangular perforations is presented in this work. The metamaterial is a 2D structure with chaining horizontal and vertical perforations exhibing auxetic in-plane behaviour. Some numerical eigenvalue tools are used for the dispersion analysis of this structure. It is first observed that the total width of Band gaps increases with the hierarchy. In order to validate the design of the metamaterial, results issued from a full 3D model of a finite structure embedding an interface composed by a distributed set of the unit cells are presented. After this step, a comparison between the results obtained using the structure simulation and the experimental results are presented with critical analysis.
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Dates et versions

hal-02131349 , version 1 (16-05-2019)

Identifiants

  • HAL Id : hal-02131349 , version 1

Citer

Kévin Billon, Morvan Ouisse, Fabrizio Scarpa, Emeline Sadoulet, Manuel Collet, et al.. Design and experimental validation of a hierarchical auxetic rectangular perforated metamaterial. Euro-Mediterranean Conference on Structural Dynamics and Vibroacoustics, Apr 2017, Sevilla, Spain. ⟨hal-02131349⟩
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