Dispersion engineering is always the important topic in the field of artificial periodic
structures. In particular, topology optimization of composite structures with expected …

We develop a topology optimization approach to design two-and three-dimensional
phononic (elastic) materials, focusing primarily on surface wave filters and waveguides …

Research on the control of wave propagation has received continuous attention due to its
potentially rewarding applications in the past decades, and numerous methods have been …

Achieving broadband low-frequency surface wave bandgaps is technically challenging,
which calls for a systematic design paradigm instead of intuitive approaches. In this study …

Seismic surface waves possess detrimental characteristics of low frequency and significant
amplitude, posing a threat to buildings and structures. This paper proposes a novel …

Topology optimization is a method that optimally distributes material in a given design
domain. In this paper, topology optimization is used to design two-dimensional wave …

New configurations and new properties of materials used in engineering components can
be developed by introducing band-gap materials for which a two-dimensional design …

Phononic band gap crystals are made of periodic inclusions embedded in a base material,
which can forbid the propagation of elastic and acoustic waves within certain range of …

This study proposes a metasurface that effectively obstructs the propagation of incident
waves at any angle over broadband frequencies from propagating to a specific area. To this …

Phononic crystals can be designed to show band gaps—ranges of frequencies whose
propagation is strongly attenuated in the material. In essence, their working principle is …