Interface-guided mode of Lamb waves in a two-dimensional phononic crystal plate*
Huang Ping-Pinga), Yao Yuan-Weia)†, Wu Fu-Genb), Zhang Xina), Li Jinga), Hu Ai-Zhena)
       
Supercell calculation of (a) the band structure and (b) the TPS for the heterostructure after introducing relatively longitudinal gliding separation Δ y = 0.3 mm with f 1 = 0.533, f 2 = 0.501, d = 0.5 mm, and θ = 27°. The gray regions delimit the PBG for the prototype heterostructure. (c) The calculated displacement field at the frequency f = 45.75 kHz.