Homogenization theory for designing graded viscoelastic sonic crystals*
Qu Zhao-Liang, Ren Chun-Yu, Pei Yong-Mao†, Fang Dai-Ning‡
       
Plots of absorption coefficient versus operation angular frequency. The inset shows the relationship between effective loss factor and angular frequency. The solid squares denote the equivalent structure, and the empty circles represent the VSC.