We analyze, numerically by the finite element method, three-dimensional electromechanical deformations of a thick laminated plate with layers made of aluminum, a viscoelastic material and a piezoceramic (PZT). Two arrangements of layers are considered. In one case a central PZT layer is surrounded on both sides by viscoelastic layers and aluminum layers are on the outside surfaces. The PZT is p...

In the present study normal plate-impact experiments are conducted to investigate the propagation of acceleration waves in 2-D layered material systems. The objective of these experiments is to understand the role of material architecture and material inelasticity in controlling precursor decay and late-time dispersion of acceleration waves in elastic-elastic and elasticviscoelastic laminates. ...

Introduction. When a fiber-reinforced viscoelastic material is cooled from cure temperature to room temperature the different coefficients of thermal expansion of the matrix and fibers lead to residual stresses. To study this phenomenon in detail, we consider a thin, isotropic, thermorheologically simple, linearly viscoelastic plate reinforced by a random system of fibers lying in the plane of ...

In this paper, the moment Lyapunov exponent and stochastic stability of a fractional viscoelastic plate driven by non-Gaussian colored noise is investigated. Firstly, dynamic equations with two degrees freedom are established piston theory Galerkin approximate method. The Kelvin–Voigt constitutive relation used to describe material properties plate, which leads that derivation term introduced i...

Viscoelastic fluids, such as polymers, paints, and DNA suspensions, are almost everywhere very useful in the industry. This article aims to study significance of ramped temperature dynamics viscoelastic fluid. Magnetohydrodynamic (MHD) effect is considered presence Lorentz force. The flow a porous medium using generalized Darcy’s law. Heat transfers through convection, fluid near plate takes he...

Viscoelastic dampers are conventional passive vibration control devices with excellent energy dissipation performance. The fractional derivative has a simple form and high accuracy in the modelling of viscoelastic materials/dampers. internal variables reflect state evolution materials, often used to analyze deformation thermal process materials. In present work, mechanical properties plate-shea...

Modal strain energy (MSE) method is a widely used approximation approach for parameter calculation of damped composite structures. In this paper, iterative MSE proposed to calculate the loss factor damping structure by considering frequency dependence modulus and viscoelastic materials. The applied free spline, plate constrain plate. results show that: obtains minimum relative errors less than ...