Full text loading...
(Color online) The schematic diagram of 1D composite PC plate; tungsten () and silicon () strips are sequenced in Cantor series (). PML is coated on both ends of the plate.
(Color online) TPS for the periodic plate (dotted gray line) and the quasi-periodic (Cantor series) plate (thin red line). The inserted TPS is the magnified one indicated by the elliptic circle (dashed black line). The splitting peaks are marked by A, B, C, D, E, and F.
(Color online) The displacement fields at the frequency loads of (a) 1230 kHz, (b) 1360 kHz, (c) 1480 kHz, (d) 1270 kHz, (e) 1281 kHz, and (f) 1295 kHz. Corresponding plot in each figure is enlarged, and the resonating Lamb wave mode in the cavity is marked to show its Bloch wavelength.
(Color online) The dispersion curve of a pure silicon plate (thickness: ). Four distinctive zones (I, II, III, and IV) are marked to show where the positions of splitting peaks should be in the frequency domain.
Article metrics loading...