Applications of Phononic Crystals & Acoustic Metamaterials
A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Hybrid and Composite Crystalline Materials".
Deadline for manuscript submissions: closed (20 January 2024) | Viewed by 10516
Special Issue Editors
Interests: smart materials and structures; acoustic metamaterials; nonlinear vibration and control; vibrational energy harvesting
Special Issue Information
Dear Colleagues,
Phononic crystals, as an artificial extension of electronic crystals in nature, are also known as acoustic band-gap materials, which are functional composites with a certain space period. Inside the phononic crystals, the elastic constants and mass densities of the material parameters vary periodically in space. The connected part is the matrix, and the disconnected part is the scatterer. The material properties of the matrix and the scatterer may be solid, gas, or liquid. According to their structural forms, they can be divided into one-dimensional, two-dimensional and three-dimensional systems, and the corresponding scatterers are layered plates, cylinders, and particles, respectively. The planar arrangement of cylinder scatterers can be a simple lattice, such as a tetragonal lattice, a rectangular lattice, or a triangular lattice, or a complex lattice, such as a hexagonal lattice, a kagome lattice, or an Archimedes lattice. The spatial lattice structure of particle scatterers can be simple cube, central cube, volume central cube, etc. The minimum periodic size of phononic crystal is a lattice constant, and the minimum unit of the periodic structure is a single cell. Due to the abundant and extraordinary properties of phononic crystals, there has been a growing amount of research interest in phononic crystals within academia and the polymer industry.
Research involving novel formulation and fabrication techniques, characterization, and potential applications of phononic crystals in many industrial fields is of particular importance today. Phononic crystals and acoustic metamaterials are used as functional materials in sustainable energy-harvesting-related applications (e.g., sensors, batteries for IoTs, etc.), vibration reduction applications, and in the development of lightweight engineered products with superior mechanical properties, to name a few. In this context, the importance of this Special Issue on phononic crystals and acoustic metamaterials to highlight recent progress in the phononic crystals and acoustic metamaterials research area becomes clear.
This Special Issue titled “Applications of Phononic Crystals & Acoustic Metamaterials” offers a broad scope of recent studies on novel phononic crystals and acoustic metamaterials, formulation, fabrication, characterization, structure–property relationships, and their applications. All of the keywords mentioned below are simply examples that showcase the variety of acceptable topics and do not serve to limit the scope of this Special Issue. As such, authors are highly encouraged to submit papers on these topics and others that are linked to the general focus of the Special Issue. Furthermore, the Special Issue aims to highlight the challenges, future research scope, and novel applications of phononic crystals and acoustic metamaterials, which can also be in the form of a short review.
Prof. Zhimiao Yan
Dr. Ting Tan
Guest Editors
Manuscript Submission Information
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Keywords
- Periodic artificial structure
- Phononic crystals
- Acoustic metamaterials
- Elastic wave control
- Reduction of vibration and noise
- Energy harvesting
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