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3 D Auxetic Microlattices with Independently Controllable Acoustic Band Gaps and Quasi‐ S tatic Elastic Moduli
Author(s) -
Krödel Sebastian,
Delpero Tommaso,
Bergamini Andrea,
Ermanni Paolo,
Kochmann Dennis M.
Publication year - 2014
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201300264
Subject(s) - materials science , moduli , elastic modulus , metamaterial , acoustic metamaterials , auxetics , inertia , lattice (music) , work (physics) , dispersion (optics) , composite material , mechanical engineering , acoustics , classical mechanics , physics , engineering , optoelectronics , optics , quantum mechanics
Mechanical metamaterials offer unique possibilities to tune their mechanical response by adjusting their geometry, without the complexity that the thermodynamics and kinetics of materials synthesis otherwise impose. In this work, the tuning of the quasi‐static and wave propagation properties of micro‐lattice structures are explored using numerical methods. The ability to independently modify the elastic moduli and the dispersion properties of the material by appropriately placing micro‐inertia elements is demonstrated. The numerical methods used for this investigation are also presented.