Phononic crystals (PCs) and metamaterials (MMs) can exhibit abnormal properties, even far
beyond those found in nature, through artificial design of the topology or ordered structure of …

We study the interaction of surface acoustic waves (SAWs) with a contact-based vibrational
resonance of 1 μ m silica microspheres forming a two-dimensional granular crystal adhered …

This paper reports on the study of the dynamics of 1D magneto-granular phononic crystals
composed of a chain of spherical steel beads inside a properly designed magnetic field …

Contact-based vibrations play an essential role in the dynamics of granular materials.
Significant insights into vibrational granular dynamics have previously been obtained with …

We extend time-domain imaging in acoustic metamaterials to gigahertz frequencies. Using a
sample consisting of a regular array of∼ 1 μm diameter silica microspheres forming a two …

The propagation of nonlinear compressional waves in a one-dimensional granular chain
driven at one end by a harmonic excitation is studied. The chain is described by a Fermi …

This chapter describes the dynamic behavior of nonlinear periodic phononic structures,
along with how such structures can be utilized to affect the propagation of mechanical …

Granular crystals are periodic structures of elastic beads arranged in crystal lattices. One
important feature of granular crystals is that the interactions between beads can take place …

We present a model for wave propagation in a monolayer of spheres on an elastic substrate.
The model, which considers sagittally polarized waves, includes: horizontal, vertical, and …

We report on the design and operation of a 1D magneto-granular phononic crystal
composed of a chain of steel spherical beads on top of permanent magnets. The magnetic …