In this paper, an approach is proposed and presented to tackle the vibro-acoustic properties of finite clamped composite sandwich plates with foam core. Composite are treated as being orthotropic apparent bending stiffnesses calculated for two principal directions. The plate estimated by element calculation on beam elements cut from considered plates. sound transmission loss predicted using Kir...

in the present study, we investigate dc conduction mechanism of electron beam evaporated   bromoaluminium phthalocyanine (bralpc) thin films using aluminum and gold electrodes. the current-voltage characteristics of sandwich type device are evaluated for the temperature range 298-413k under dark conditions. it is observed that the current passing through the device is increased by increasing te...

We study in this paper the stability of a system type Rao–Nakra sandwich beam whole line $\mathbb{R}$ under linear frictional dampings acting on two wave equations. prove that $L^2(\mathbb{R})$-norm solutions and their higher order derivatives with respect to space variable converge polynomially zero as time goes infinity. These decay estimates are obtained independently parameters spite fact E...