In this paper we review recent progress on the analysis, experimental exploration, and
application of elastic wave propagation in weakly nonlinear media and metamaterials. We …

Nonlinear acoustic metamaterials (NAMs) exhibit extraordinary properties for low-frequency
and broadband vibration mitigation. Despite the increasing attention received, exotic …

The nonlinear dispersion properties of a metamaterial beam embedding nonlinear
resonators are investigated. The metamaterial beam incorporates a distributed array of local …

Strong nonlinearity usually becomes noticeable when nonlinear materials or structures
undergo large deformation. However, we present here the inverse nonlinearity, where the …

This paper reports a novel band structure manipulation mechanism stemmed from taut
strings to shift the Bragg and local resonance band gaps simultaneously. We first developed …

Wave propagation in metamaterial honeycombs endowed with periodically distributed
nonlinear resonators is addressed. The linear and nonlinear dispersion properties of the …

Metamaterials are artificial microstructured media that exhibit unique effective material
properties and can be tailored to achieve negative properties that inhibit the propagation of …

The roton-like dispersions support the “return flow” of acoustic waves; such phenomena
were only observed in quantum systems. In this paper, we aim to investigate the nonlinear …

Considerable attention has recently been given to the study of simultaneous energy
harvesting and vibration attenuation in metastructures. However, only linear metastructures …

The cellular microstructure of periodic architected materials can be enriched by local
intracellular mechanisms providing innovative distributed functionalities. Specifically, high …