Engineering Metamaterials for Civil Infrastructure: From Acoustic Performance to Programmable Mechanical Responses

Area of Science:

• Civil Engineering
• Materials Science
• Acoustics

Background:

• Metamaterials, with structures not composition, offer unique wave attenuation and mechanical properties.
• Applications in civil engineering leverage these properties for noise reduction and structural enhancement.

Purpose of the Study:

• To review the applications of acoustic and mechanical metamaterials in civil engineering.
• To explore potential in energy harvesting and adaptive infrastructure.

Main Methods:

• Comprehensive literature review of metamaterial applications in civil infrastructure.
• Analysis of acoustic metamaterials for noise pollution control.
• Evaluation of mechanical metamaterials for structural resilience and seismic performance.

Main Results:

• Acoustic metamaterials significantly enhance sound insulation in urban and transport settings.
• Mechanical metamaterials provide novel strategies for structural resilience and seismic performance.
• Emerging opportunities include energy harvesting and adaptive infrastructure integration.

Conclusions:

• Metamaterials present transformative potential for civil infrastructure.
• Challenges in scalability, durability, and integration need addressing for widespread adoption.
• Future research is crucial for developing sustainable, adaptive, and high-performance metamaterial solutions.