The study of phononic materials and structures is an emerging discipline that lies at the
crossroads of vibration and acoustics engineering and condensed matter physics. Broadly …

Phononic crystals have been proposed about two decades ago and some important
characteristics such as acoustic band structure and negative refraction have stimulated …

In this work, a novel Fourier series expansion is proposed for representing periodic three-
dimensional metamaterials consisting of spherical inclusions in a cubic lattice, which allows …

We develop a formalism for the calculation of the frequency band structure of a phononic
crystal consisting of nonoverlap** elastic spheres, characterized by Lamé coefficients …

For the realization of topologically protected wave propagation, engineering artificial
structures of topological insulators (TIs) inspired by quantum mechanics has attracted …

We perform extensive band structure computation for two-dimensional 2D periodic arrays of
rigid stainless steel cylinders in air, with Bloch vector being perpendicular to the cylinders …

We present a review, through selected illustrative examples, of the physics of classical
vibrational modes in phononic lattices, which elaborates on the theory, the formalism, the …

Thin rubber layers with air-filled cavities can be used as anechoic submarine coatings.
Normally incident sonar energy is redistributed in the lateral direction and absorbed. In this …

Phononic crystals and acoustic metamaterials are architected lattices designed to control the
propagation of acoustic or elastic waves. In these materials, the dispersion properties and …

Acoustic metamaterials offer a new paradigm for the control and manipulation of sound
waves that are often unachievable through conventional materials. The potential this offers …