The authors study the propagation of flexural waves in a locally resonant (LR) thin plate
made of a two-dimensional periodic array of spring–mass resonators attached on a thin …

One of the outstanding challenges in phononic crystals and acoustic metamaterials
development is the ability to tune their performance without requiring structural …

The plane wave expansion method is extended to study the flexural wave propagation in
locally resonant beams with multiple periodic arrays of attached spring-mass resonators …

Wave propagation and vibration transmission in metamaterial-based elastic rods containing
periodically attached multi-degree-of-freedom spring–mass resonators are investigated. A …

Band gap materials (ie phononic crystals) are the artificially periodic structures, which have
the stop band characteristic for elastic waves. The elastic waves will be localized in …

In order to achieve strong wide band acoustic absorption under high hydrostatic pressure,
an interpenetrating network structure is introduced into the locally resonant phononic crystal …

An elastic metamaterial made of lead cylinders coated with elliptical rubbers in an epoxy
matrix is considered, and its anisotropic effective dynamic mass density tensor is numerically …

The hierarchical phononic crystals to be considered show a two-order “hierarchical” feature,
which consists of square array arranged macroscopic periodic unit cells with each unit cell …

The low frequency phononic band structures of two-dimensional arc-shaped phononic
crystals (APCs) were studied by the transfer matrix method in cylindrical coordinates. The …

The theoretical study deals with the propagation of surface acoustic waves in two-
dimensional arrays of resonant elements with different symmetry lattices. The resonant …