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)
       
Band structures of the heterostructures after introducing relatively lateral slipping separation Δ x = 0.55 mm with f 1 = 0.533, f 2 = 0.501, and θ = 27°. The gray regions delimit the PBG for the heterostructure. The thickness (a) d = 0.1 mm, (b) d = 0.15 mm, (c) d = 0.5 mm, and (d) d = 0.8 mm.