Mechanical metamaterials

R Craster, S Guenneau, M Kadic… - Reports on Progress in …, 2023 - iopscience.iop.org
Mechanical metamaterials, also known as architected materials, are rationally designed
composites, aiming at elastic behaviors and effective mechanical properties beyond ('meta') …

Experiments on cloaking in optics, thermodynamics and mechanics

M Kadic, T Bückmann, R Schittny… - … Transactions of the …, 2015 - royalsocietypublishing.org
Spatial coordinate transformations can be used to transform boundaries, material
parameters or discrete lattices. We discuss fundamental constraints in regard to cloaking …

Pentamode metamaterials with independently tailored bulk modulus and mass density

M Kadic, T Bückmann, R Schittny, P Gumbsch… - Physical Review …, 2014 - APS
We propose a class of linear elastic three-dimensional metamaterials for which the effective
parameters bulk modulus and mass density can be adjusted independently over a large …

Active mechanical cloaking for unsupervised damage resilience in programmable elastic metamaterials

D Kundu, S Naskar… - Philosophical …, 2024 - royalsocietypublishing.org
Owing to the architected void-filled low-density configurations, metamaterials are prone to
defects during the complex manufacturing process, or damages under operational …

Antiplane elastic wave cloaking using metamaterials, homogenization and hyperelasticity

WJ Parnell, T Shearer - Wave Motion, 2013 - Elsevier
We consider the problem of how to cloak objects from antiplane elastic waves using two
alternative techniques. The first is the use of a layered metamaterial in the spirit of the work …

Multi-element metamaterial's design through the relaxed micromorphic model

LA Perez Ramirez, G Rizzi, A Madeo - … : Dedicated to the 60th Birthday of …, 2023 - Springer
Exploring the dynamical response of mechanical metamaterials has gathered increasing
attention in the last decades, enabling the design of microstructures exotically interacting …

[HTML][HTML] From frequency-dependent models to frequency-independent enriched continua for mechanical metamaterials

G Rizzi, MV d'Agostino, J Voss, D Bernardini… - European Journal of …, 2024 - Elsevier
Mechanical metamaterials have recently gathered increasing attention for their uncommon
mechanical responses enabling unprecedented applications for elastic wave control. Many …

Experimental investigation of mechanical, acoustic and hybrid metamaterial designs for enhanced and multi-band electric motor noise dissipation

Z Tian, J Bennett, J Yang, T Lawrie, W Elmadih… - Engineering …, 2022 - Elsevier
Acoustic metastructures exhibit an unprecedented ability to arbitrarily manipulate the
properties of sound waves, including amplitude and phase modulation which has attracted …

Exploring metamaterials' structures through the relaxed micromorphic model: switching an acoustic screen into an acoustic absorber

G Rizzi, M Collet, F Demore, B Eidel, P Neff… - Frontiers in …, 2021 - frontiersin.org
While the design of always new metamaterials with exotic static and dynamic properties is
attracting deep attention in the last decades, little effort is made to explore their interactions …

[HTML][HTML] Bounds on Herglotz functions and fundamental limits of broadband passive quasistatic cloaking

M Cassier, GW Milton - Journal of Mathematical Physics, 2017 - pubs.aip.org
Using a sum rule, we derive new bounds on Herglotz functions that generalize those given
in Bernland et al.[J. Phys. A: Math. Theor. 44 (14), 145205 (2011)] and Gustafsson and …