637 citations · 3.1k across the 113 of their papers we have counts for
15 papers · 1 filter
Transformation twinning to create isospectral cavities
Simon V. Lenz, Sébastien Guenneau, Bruce W. Drinkwater +2
Bounded domains have discrete eigenfrequencies/spectra, and cavities with different boundaries and areas have different spectra. A general methodology for isospectral twinning, whe…
Transformation design of in-plane elastic cylindrical cloaks, concentrators and lenses
Michele Brun, Sebastien Guenneau
We analyse the elastic properties of a class of cylindrical cloaks deduced from linear geometric transforms in the framework of the Milton-Briane- Willis clo…
Dynamic behavior of mechanical cloaks designed by direct lattice transformation
Muamer Kadic, Martin Wegener, Andre Nicolet +3
Steering waves in elastic solids is more demanding than steering waves in electromagnetism or acoustics. As a result, designing material distributions which are the counterpart of…
Modulation of diffusion rate of therapeutic peptide drugs using graphene oxide membranes
T. M. Puvirajesinghe, Z. L. Zhi, R. V. Craster +1
We investigate diffusion of a peptide drug through Graphene Oxide (GO) membranes that are modeled as a porous layered laminate constructed from aligned flakes of GO. Our experiment…
Transformation seismology: composite soil lenses for steering surface elastic Rayleigh waves
A. Colombi, S. Guenneau, P. Roux +1
Metamaterials are artificially structured media that can focus (lensing) or reroute (cloaking) waves, and typically this is developed for electromagnetic waves at millimetric down…
Wave mechanics in media pinned at Bravais lattice points
Mehul Makwana, Tryfon Antonakakis, Ben Maling +2
The propagation of waves through microstructured media with periodically arranged inclusions has applications in many areas of physics and engineering, stretching from photonic cry…
Steering in-plane shear waves with inertial resonators in platonic crystals
Younes Achaoui, André Diatta, Sébastien Guenneau
Numerical simulations shed light on control of shear elastic wave propagation in plates structured with inertial resonators. The structural element is composed of a heavy core conn…
Elastodynamic cloaking and field enhancement for soft spheres
Andre Diatta, Sebastien Guenneau
In this paper, we bring to the awareness of the scientific community and civil engineers, an important fact: the possible lack of wave protection of transformational elastic cloaks…
Spectral efficiency of engineered thermal cloaks in the frequency regime
David Petiteau, Sébastien Guenneau, Michel Bellieud +2
We analyse basic thermal cloaks designed via different geometric transforms applied to thermal cloaking. We evaluate quantitatively the efficiency of these heterogeneous anisotropi…
Biharmonic Split Ring Resonator Metamaterial: Artificially dispersive effective density in thin periodically perforated plates
M. Farhat, S. Enoch, S. Guenneau
We present in this paper a theoretical and numerical analysis of bending waves localized on the boundary of a platonic crystal whose building blocks are split ring resonators (SRR)…
Controlling solid elastic waves with spherical cloaks
Andre Diatta, Sebastien Guenneau
We propose a cloak for coupled shear and pressure waves in solids. Its elastic properties are deduced from a geometric transform that retains the form of Navier equations. The sphe…
Time Driven Subwavelength Focusing with Negative Refraction
M. Dubois, E. Bossy, S. Enoch +3
Flat lens concept based on negative refraction proposed by Veselago in 1968 has been mostly investigated in monochromatic regime. It was recently recognized that time development o…
Moulding flexural waves in elastic plates lying atop a Faqir's bed of nails
Tryfon Antonakakis, Richard Craster, Sébastien Guenneau
Platonic crystals (PCs) are the elastic plate analogue of the photonic crystals widely used in optics, and are thin structured elastic plates along which flexural waves cannot prop…
Experiments on transformation thermodynamics: Molding the flow of heat
Robert Schittny, Muamer Kadic, Sebastien Guenneau +1
It has recently been shown theoretically that the time-dependent heat conduction equation is form-invariant under curvilinear coordinate transformations. Thus, in analogy to transf…
Achieving control of in-plane elastic waves
Michele Brun, Sebastien Guenneau, Alexander B. Movchan
We derive the elastic properties of a cylindrical cloak for in-plane coupled shear and pressure waves. The cloak is characterized by a rank 4 elasticity tensor with 16 spatially va…