On the dynamic properties of metamaterials in civil engineering structures

Abstract

Metamaterials have a foundation in electromagnetics, and the unique properties of these metamaterials have found wide applications in acoustics and electrodynamics disciplines. By exploring local resonant effect of the included aggregates in the concrete mix with ellipsoidal coating rubber, a new elastic metamaterial called metaconcrete is formed. The metaconcrete with anisotropic effective dynamic mass density is determined as functions of frequency numerically. This metaconcrete has unique properties that can prevent earthquakes, shock and other disturbances at a targeted frequency.