Shear horizontal (SH) waves are of great importance in structural health monitoring (SHM)
and nondestructive testing (NDT), since the lowest order SH wave in isotropic plates is non …

Guided waves, elastic waves propagating through bounded structures, play a pivotal role in
various applications, including ultrasonic non-destructive testing and structural health …

Pentamode metamaterials (PMs), a kind of metafluids composed of complex solid medium,
have shown enormous potential for both elastic wave and underwater acoustic wave …

力学超材料是一类由人工微结构单元构筑的复合结构或复合材料, 具有天然材料所不具备的静
力学/动力学性能. 由于这些超常特性通常取决于微结构单元而非材料组分 …

In this paper, a new composite metamaterial structure with negative effective mass density,
negative effective modulus, and an ultralarge Poisson's ratio is designed for vibration …

超材料是一类新兴的具有超常物理性质的人造周期/拟周期材料, 能够改变电磁波,
声波以及弹性波等在介质中的传播特性. 因在航天, 国防以及民用科学等方面的巨大应用潜力 …

Complex polarizations of elastic waves allow mode conversions between two solids, making
wave mode separation extremely difficult even for a narrow frequency range with resonant …

Penta-mode metamaterials, composed by solids but behaving as liquid, have great potential
in manipulating acoustic wave in fluids. Most work concentrates on 2D penta-mode …

Mechanical metamaterials are man-made composite structures or materials constructed
from artificial microstructural units with extraordinary static/dynamic properties not found in …

Lattice materials with low acoustic impedance can be treated as acoustic soft boundaries
compared to water and have potential application to underwater sound insulation. However …