Using 3D metal-printing topological materials to manipulate full-vector elastic waves. (IMAGE)

Science China Press

Using 3D metal-printing topological materials to manipulate full-vector elastic waves.

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IMAGE2: Robust transport of the elastic edge states in the presence of a rectangular defect. a, Photograph of the elastic metamaterial sample with a rectangular defect along the free boundary. b, Measured transmission for the defect path (red dots), compared with that for a straight path (black dots). The grey region denotes the bulk band gap. c and d, Measured and simulated field distributions at 26.75 kHz, respectively. Green stars denote the sources.

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