26 citations · 34 across the 5 of their papers we have counts for
7 papers
Canonical scattering problem in topological metamaterials: Valley-Hall modes through a bend
Theo Torres, Cédric Bellis, Régis Cottereau +1
We study the amount of backscattering of Valley Hall modes in a classical topological insulator. In reciprocal systems, the conservation of the valley index has been argued to be a…
Crossover Between Quantum and Classical Waves and High Frequency Localization Landscapes
David Colas, Cédric Bellis, Bruno Lombard +1
Anderson localization is a universal interference phenomenon occurring when a wave evolves through a random medium and it has been observed in a great variety of physical systems,…
Time-domain investigation of a cylindrical acoustic external cloak
Sebastien Guenneau, Bruno Lombard, Cedric Bellis
Space folding techniques based on non-monotonic transforms lead to a new class of cylindrical isotropic acoustic cloaks with a constant negative density and a spatially varying neg…
Converting strain maps into elasticity maps for materials with small contrast
Cedric Bellis
This study addresses the question of the quantitative reconstruction of heterogeneous distributions of isotropic elastic moduli from full strain field data. This parameter identifi…
Geometric variational principles for computational homogenization
Cedric Bellis, Pierre Suquet
The homogenization of periodic elastic composites is addressed through the reformulation of the local equations of the mechanical problem in a geometric functional setting. This re…
Wave propagation in a fractional viscoelastic Andrade medium: diffusive approximation and numerical modeling
Abderrahmin Ben Jazia, Bruno Lombard, Cédric Bellis
This study focuses on the numerical modeling of wave propagation in fractionally-dissipative media. These viscoelastic models are such that the attenuation is frequency dependent a…
Reconstruction of constitutive parameters in isotropic linear elasticity from noisy full-field measurements
Guillaume Bal, Cédric Bellis, Sébastien Imperiale +1
Within the framework of linear elasticity we assume the availability of internal full-field measurements of the continuum deformations of a non-homogeneous isotropic solid. The aim…