Noise pollution has become a significant global problem in recent years. Unfortunately,
conventional acoustic materials cannot offer substantial improvements in noise reduction …

The concept of metamaterials originates from the proposal of left-hand materials with
negative refractive index, followed by which, varieties of metamaterials with kinds of fantastic …

Multifunctional materials are in high demand for practical engineering applications. Owing to
the ubiquitous noise and impact energy hazards in many settings, traditional materials and …

Causality of linear time-invariant systems inherently defines the wave-matter interaction
process in wave physics. This principle imposes strict constraints on the interfacial response …

The advent of 3D printing brought about the possibilities of microlattice metamaterials as
advanced materials with the potentials to surpass the functionalities of traditional materials …

Acoustic resonances in open systems, which are usually associated with resonant modes
characterized by complex eigenfrequencies, play a fundamental role in manipulating …

In practical engineering, noise and impact hazards are pervasive, indicating the pressing
demand for materials that can absorb both sound and stress wave energy simultaneously …

In the past two decades, the research on acoustic metamaterials has flourished, which is
also benefited from the development of additive manufacturing technology. The exotic …

Chiral phononic crystals (CPCs) offer an advanced approach to vibration isolation by
exploiting inertial amplification, establishing broad band gaps at low frequencies and …

Lattice structures have demonstrated promising potential for applications in load bearing,
impact protection, sound absorption and noise mitigation thanks to their lightweight and high …