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. 2016 Jun 6;6:27432. doi: 10.1038/srep27432

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Normalized force versus stretch response of acoustomechanical metamaterial sheet with fixed acoustic input of but different initial sheet thicknesses: (a) L₃/Λ = 0.5, (b) L₃/Λ = 1.25, (c) L₃/Λ = 2.0 and (d) L₃/Λ = 4.0. As L₃/Λ is increased, the response sequentially shows monotonic, s-shape, snapping, and multi-snapping phenomena. Inset plots illustrate the variation trends of normalized acoustical radiation stresses with stretch.

Inline graphic — Normalized force versus stretch response of acoustomechanical metamaterial sheet with fixed acoustic input of but different initial sheet thicknesses: (a) L₃/Λ = 0.5, (b) L₃/Λ = 1.25, (c) L₃/Λ = 2.0 and (d) L₃/Λ = 4.0. As L₃/Λ is increased, the response sequentially shows monotonic, s-shape, snapping, and multi-snapping phenomena. Inset plots illustrate the variation trends of normalized acoustical radiation stresses with stretch.