Vibration attenuation using a 3D cubic re-entrant metamaterial structure with tunable bandgaps induced by variations in the re-entrant angle

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Fig. 13

Evolution of the bandgap with nominal strain increase from 0 to −0.05. (a) Evolution of bandgap for 20 mm unit cell size. (b) Relative width of the first and second bandgaps for 20 mm unit cell. (c) Evolution of bandgap for 10 mm unit cell size. (d) Relative. width of the first and second bandgaps for 10 mm unit cell.

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