4 papers
Bidirectional elastic diode with frequency-preserved nonreciprocity
Xin Fang, Jihong Wen, Li Cheng +1
The study of nonreciprocal wave propagation is of great interests for both fundamental research and engineering applications. Here we demonstrate theoretically and experimentally a…
Space-time Variant Self-growing Bandgap in Nonlinear Acoustic Metamaterial
Xin Fang, Jihong Wen, Dianlong Yu
Material band structure is key foundation for various modern technologies, but it was regarded as a space-time invariant feature. Acoustic metamaterials show extraordinary properti…
Wave propagation in infinite nonlinear acoustic metamaterial beam by considering the third harmonic generation
Xin Fang, Jihong Wen, Dianlong Yu +2
Nonlinear acoustic metamaterial (NAM) initiates new fields for controlling elastic waves. In this work, the flexural wave propagation in the half-infinite NAM beam consisting of pe…
Bridging coupling bandgaps in nonlinear acoustic metamaterials
Xin Fang, Jihong Wen, Dianlong Yu
Nonlinear acoustic metamaterials (NAMs) open new freedoms in exploiting novel technologies for wave manipulations. Recently, the desired ultra-low and ultra-broad-band wave suppres…