TY - JOUR
T1 - Programming nonreciprocity and reversibility in multistable mechanical metamaterials
AU - Librandi, Gabriele
AU - Tubaldi, Eleonora
AU - Bertoldi, Katia
N1 - Funding Information:
K.B. acknowledges support from NSF grants EFMA-1741685 and DMR-2011754 and Army Research Office Grant W911NF-17-1-0147. E.T. acknowledges support from the University of Maryland, College Park - startup package. G.L. and E.T. acknowledge John Hutchinson and Lakshminarayanan Mahadevan for interesting conversations and helpful suggestions.
Publisher Copyright:
© 2021, The Author(s).
PY - 2021/12
Y1 - 2021/12
N2 - Nonreciprocity can be passively achieved by harnessing material nonlinearities. In particular, networks of nonlinear bistable elements with asymmetric energy landscapes have recently been shown to support unidirectional transition waves. However, in these systems energy can be transferred only when the elements switch from the higher to the lower energy well, allowing for a one-time signal transmission. Here, we show that in a mechanical metamaterial comprising a 1D array of bistable arches nonreciprocity and reversibility can be independently programmed and are not mutually exclusive. By connecting shallow arches with symmetric energy wells and decreasing energy barriers, we design a reversible mechanical diode that can sustain multiple signal transmissions. Further, by alternating arches with symmetric and asymmetric energy landscapes we realize a nonreciprocal chain that enables propagation of different transition waves in opposite directions.
AB - Nonreciprocity can be passively achieved by harnessing material nonlinearities. In particular, networks of nonlinear bistable elements with asymmetric energy landscapes have recently been shown to support unidirectional transition waves. However, in these systems energy can be transferred only when the elements switch from the higher to the lower energy well, allowing for a one-time signal transmission. Here, we show that in a mechanical metamaterial comprising a 1D array of bistable arches nonreciprocity and reversibility can be independently programmed and are not mutually exclusive. By connecting shallow arches with symmetric energy wells and decreasing energy barriers, we design a reversible mechanical diode that can sustain multiple signal transmissions. Further, by alternating arches with symmetric and asymmetric energy landscapes we realize a nonreciprocal chain that enables propagation of different transition waves in opposite directions.
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U2 - 10.1038/s41467-021-23690-z
DO - 10.1038/s41467-021-23690-z
M3 - Article
C2 - 34103522
AN - SCOPUS:85107619596
VL - 12
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
M1 - 3454
ER -