230 citations · 1.1k across the 16 of their papers we have counts for
16 papers
Waves over a periodic progressive modulation: A python tutorial
Hussein Nassar, Andrew N. Norris, Guoliang Huang
This chapter presents a selection of theoretical and numerical tools suitable for the study of wave propagation in time-dependent media. The focus is on one-dimensional spring-mass…
Discrete Transformation Elasticity: An Approach to Design Lattice-based Polar Metamaterials
Yangyang Chen, Hussein Nassar, Guoliang Huang
The transformation method is a powerful tool for providing the constitutive parameters of the transformed material in the new coordinates. In transformation elasticity, a general c…
Physical rendering of synthetic spaces for topological sound transport
Hui Chen, Hongkuan Zhang, Qian Wu +5
Synthetic dimensions can be rendered in the physical space and this has been achieved with photonics and cold atomic gases, however, little to no work has been succeeded in acousti…
Channel-Coupling Fano Resonance and Acoustic Metadamping
Huy Nguyen, Qian Wu, Hui Chen +1
Fano resonance featuring asymmetric spectral profiles originates from the interference of local resonances and background continuum. Its narrow-band nature looks seemingly adverse…
Realization of active metamaterials with odd micropolar elasticity
Yangyang Chen, Xiaopeng Li, Colin Scheibner +2
Materials made from active, living, or robotic components can display emergent properties arising from local sensing and computation. Here, we realize a freestanding active metabea…
Microtwist elasticity: A continuum approach to zero modes and topological polarization in Kagome lattices
Hussein Nassar, Hui Chen, Guoliang Huang
The topologically polarized isostatic lattices discovered by Kane and Lubensky (2014, Nat. Phys. 10, 39-45) challenged the standard effective medium theories used in the modeling o…
Polar metamaterials: A new outlook on resonance for cloaking applications
H. Nassar, Y. Y. Chen, G. L. Huang
Rotationally resonant metamaterials are leveraged to answer a longstanding question regarding the existence of transformation-invariant elastic materials and the ad-hoc possibility…
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…
Elastic quantum spin-Hall effect in Kagome lattices
Hui Chen, Hussein Nassar, Andrew N. Norris +2
A Quantum Spin-Hall Insulator (QSHI) is implemented into a simple mass-spring Kagome lattice. The transition from the trivial state to the topological one is described by an invari…
Observation of nonreciprocal wave propagation in a dynamic phononic lattice
Yifan Wang, Behrooz Yousefzadeh, Hui Chen +3
Acoustic waves in a linear time-invariant medium are generally reciprocal; however, reciprocity can break down in a time-variant system. In this Letter, we report on an experimenta…
Topological mechanics of edge waves in Kagome lattices
Hui Chen, Hussein Nassar, Guoliang Huang
Topological insulators are new phases of matter whose properties are derived from a number of qualitative yet robust topological invariants rather than specific geometric features…
Kirigami-based Elastic Metamaterials with Anisotropic Mass Density for Subwavelength Flexural Wave Control
R. Zhu, H. Yasuda, G. L. Huang +1
A novel design of an elastic metamaterial with anisotropic mass density is proposed to manipulate flexural waves at a subwavelength scale. The three-dimensional metamaterial is ins…
Topological phononic insulator with robustly pseudospin-dependent transport
Bai-Zhan Xia, Ting-Ting Liu, Hong-Qing Dai +5
Topological phononic states, facilitating acoustic unique transports immunizing to defects and disorders, have significantly revolutionized our scientific cognition of acoustic wav…
Enhanced flexural wave sensing by adaptive gradient-index metamaterials
Y. Y. Chen, R. Zhu, M. V. Barnhart +1
Increasing sensitivity and signal to noise ratios of conventional wave sensors is an interesting topic in structural health monitoring, medical imaging, aerospace and nuclear instr…
Analytical coupled vibroacoustic modeling of membrane-type acoustic metamaterials: plate model
Yangyang Chen, Xiaoming Zhou, Gengkai Hu +2
By considering the membrane's dissipation, the membrane-type acoustic metamaterial (MAM) has been demonstrated as a super absorber for low-frequency sound. In the paper, a theoreti…
Analytical coupled vibroacoustic modeling of membrane-type acoustic metamaterials: membrane model
Yangyang Chen, Xiaoming Zhou, Gengkai Hu +2
Membrane-type Acoustic Metamaterials (MAMs) have demonstrated unusual capacity in controlling low-frequency sound transmission/reflection. In this paper, an analytical vibroacousti…