Optical evaluation of the wave filtering properties of graded undulated lattices

  title={Optical evaluation of the wave filtering properties of graded undulated lattices},
  author={G. Trainiti and Massimo Ruzzene},
  journal={Journal of Applied Physics},
We investigate and experimentally demonstrate the elastic wave filtering properties of graded undulated lattices. Square reticulates composed of curved beams are characterized by graded mechanical properties which result from the spatial modulation of the curvature parameter. Among such properties, the progressive formation of frequency bandgaps leads to strong wave attenuation over a broad frequency range. The experimental investigation of wave transmission and the detection of full wavefields… 

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