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)
       
(a) The band structure for the heterostructure. (b) TPS for the heterostructure with relatively lateral slipping separation Δ x = 0.55 mm, 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 transmission displacement field at the frequency f = 49.15 kHz.