Acoustic metamaterials: metamaterials for wave control and manipulation by exploring nonlinearity

P. Brandão Silva, T.F.W. van Nuland, T.S. van Loon, V. Zega, Michael Leamy, M.G.D. Geers, V. Kouznetsova

Research output: Contribution to journalArticleProfessional

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Abstract

The development of metamaterials enables to engineer materials with extraordinary features, beyond the traditional limits. In the linear dynamic regime, metamaterials have already enabled a wide range of new functionalities, such as cloaking, super-lenses, and signal filtering. The consideration of nonlinearity has the potential to bring a myriad of new opportunities for metamaterials. Within the 4TU.High-Tech Materials research program, metamaterials were developed with nonlinear resonant inclusions. Results of this
research show emergent dynamic features which may enable tunability, new mechanisms of sound and vibration attenuation, and the realization of a ‘mechanical diode’. Besides, efficient computational schemes are being developed for optimal analysis of the emergent
metastructure design.
Original languageEnglish
Pages (from-to)30-35
Number of pages6
JournalInnovative Materials
Volume4
Publication statusPublished - 2018

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