Local resonance band gaps in acoustic metamaterials are widely known for their strong
attenuation yet narrow frequency span. The latter limits the practical ability to implement …

In this paper, we demonstrate how conventional finite element modal analysis of a slice of
an infinite homogeneous or periodic waveguide provides essential information on its …

This work aims to provide better physical understanding of Bragg band gap effects in
continuously periodic corrugated beams for flexural waves. The main outcome is the …

The distinction and correlation between intrinsic and boundary-induced properties represent
a core problem in material physics. While resonant modes do not exist within band gaps in …

The objective of this paper is to use transfer functions to comprehend the formation of band
gaps in locally resonant acoustic metamaterials. Identifying a recursive approach for any …

Phononic crystals exhibit Bragg bandgaps, frequency regions within which wave
propagation is forbidden. In solid continua, bandgaps are the outcome of destructive …

This paper investigates the influence of the boundary conditions on the stop band effect in
finite locally resonant metamaterial beams. In a first step, a Timoshenko beam with tuned …

While extensive research has been conducted on elastic wave propagation in infinite
phononic crystal (PC) rods, practical applications often involve PC rods of finite length …

Elastic metamaterials (EMMs) with engineered bandgaps have numerous applications in
medical, transport, and aerospace domains due to their extraordinary performance in …

Bragg scattering in periodic media generates bandgaps, frequency bands where waves
attenuate rather than propagate. Yet, a finite periodic structure may exhibit resonance …