184 citations · 586 across the 8 of their papers we have counts for
8 papers
Topological Phase Transition in Mechanical Honeycomb Lattice
Yi Chen, Xiaoning Liu, Gengkai Hu
Topological materials provide a new tool to direct wave energy with unprecedented precision and robustness. Three elastic topological phases, the valley Hall, Chern and spin Hall i…
Extremal micropolar materials for elastic wave cloaking
Dingxin Sun, Yi Chen, Xiaoning Liu +1
The asymmetric transformation elasticity offers a promising method to control elastic waves. However, this method requires elastic materials that support asymmetric stresses, which…
Rayleigh surface waves of extremal elastic materials
Yu Wei, Yi Chen, Wen Cheng +2
Extremal elastic materials here refer to a specific class of elastic materials whose elastic matrices exhibit one or more zero eigenvalues, resulting in soft deformation modes that…
An asymmetric elastic metamaterial model for elastic wave cloaking
Hongkuan Zhang, Yi Chen, Xiaoning Liu +1
Elastic material with its elastic tensor losing minor symmetry is considered impossible without introducing artificially body torque. Here we demonstrate the feasibility of such ma…
Boundary effect on acoustic cloak with unideal pentamode material
Yi Chen, Xiaoning Liu, Gengkai Hu
Pentamode materials are elastic solids with vanishing shear modulus, and can be used cloak underwater sound with solid state and broadband merits. However, pentamode materials real…
Broadband solid cloak for underwater acoustics
Yi Chen, Mingye Zheng, Xiaoning Liu +5
Application of transformation theory to underwater acoustics has been a challenging task because highly anisotropic density is unachievable in water. A possible strategy is to expl…
Transformation Ray Method: Controlling High Frequency Elastic Waves
Zheng Chang, Jin Hu, Xiaoning Liu +1
A transformation method based on elastic ray theory is proposed to control high frequency elastic waves. We show that ray path can be controlled in an exact manner, however energy…
Constraint condition on transformed relation for generalized acoustics
Jin Hu, Xiaoning Liu, Gengkai Hu
Contrary to transformation optics (TO), there exist many possibilities for transformed relations of material property and field variable in case of transformation acoustics (TA). T…