Gyani Shankar Sharma

TL;DR: In this paper, a finite element model of the periodically distributed voids and hard inclusions in the host rubber medium is presented, where different combinations of the layers have markedly different impacts on the acoustic performance, whereby the physical mechanisms governing sound absorption are strongly dependent on the Fabry-Perot and dipole resonances associated with the presence of the inclusions.

TL;DR: An approximate analytical model is presented to investigate sound transmission, reflection and absorption of a rubber-like medium comprising a single layer of periodic cylindrical voids attached to a steel backing, modelled as a homogeneous medium with effective material and geometric properties.

TL;DR: In this paper, an analytical and numerical model is developed to study sound transmission through a periodically voided soft elastic medium submerged in water, and the effect of strong and weak coupling of void resonances on the transmission characteristics is presented.

TL;DR: In this paper, the acoustic performance of a locally resonant phononic crystal comprising steel cylindrical scatterers arranged periodically in a viscoelastic medium is analyzed and compared with those from a numerical model based on the finite element method.

TL;DR: A generalized analytical model is presented to investigate acoustic scattering by a lattice of voids of arbitrary shape in a viscoelastic matrix using analogies between acoustics and electrostatics.