Journal article
Using high-frequency vibrations and non-linear inclusions to create metamaterials with adjustable effective properties
We investigate how high-frequency (HF) excitation combined with strongly non-linear elasticity may influence the effective properties for low-frequency wave propagation. The HF effects are demonstrated for linear spring-mass chains with embedded non-linear parts. The investigated mechanical systems can be viewed as a one-dimensional model of materials with non-linear inclusions.
The presented analytical and numerical results show that effective material properties can be altered by establishing HF standing waves in the non-linear regions of the chain. In addition, it is demonstrated how true static displacements and forces can be created by using HF excitation with structures having asymmetric displacement-force characteristics.
Language: | English |
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Year: | 2009 |
Pages: | 90-97 |
ISSN: | 18785638 and 00207462 |
Types: | Journal article |
DOI: | 10.1016/j.ijnonlinmec.2008.09.001 |
ORCIDs: | Lazarov, Boyan Stefanov and Thomsen, Jon Juel |