Research in the field of phononic crystals (PnCs) has traditionally focused on single defects
for energy localization and frequency-selective filtering. Recent attention has turned to …

In the present paper, an auxetic tape composed of modified star-shaped unit cells is used to
filter the propagation of elastic waves in two-dimensional structures. The pattern of the …

In this paper, the flexural wave propagation and its control of a novel piezoelectric composite
pipe conveying fluid are investigated. Dual piezoelectric layers used as sensor and actuator …

Metamaterials with ultrawide and ultralow frequency bandgaps have broad applications in
engineering. In this work, a grounding metamaterial with internal vibrators is proposed. This …

Traditional finite element analysis methods have the problem of expensive and unstable
band structure diagram calculation when generating phononic crystals. Therefore, this study …