As we can see, a sandwich beam
made up of three discrete layers with a homogeneous core (which can be consist of CNT or not).
Ohayon, "Finite element formulation of viscoelastic sandwich beams
using fractional derivative operators," Computational Mechanics, vol.
Murmu, "Thermo-mechanical vibration of FGM sandwich beam
under variable elastic foundations using differential quadrature method," Journal of Sound and Vibration, vol.
A simple sandwich beam
is selected which is capable of withstanding load primarily by resisting bending.
6, a and 6, b shows the variation of the first natural frequency of the sandwich beam
versus the thickness ratio, with various fiber orientations.
DESIGN MAP OF A SANDWICH BEAM
LOADED IN THREE-POINT BENDING
Markus, "The forced vibration of a three-layer, damped sandwich beam
with arbitrary boundary conditions," Journal of Sound and Vibration, vol.
Dynamic stability of a sandwich beam
with a constraining layer and electrorheological fluid core, Composite Structures 64(1): 47-54.
Deshpande, "Quasistatic three-point bending of carbon fiber sandwich beams
with square honeycomb cores," Journal of Applied Mechanics, Transactions ASME, vol.
Banerjee, "Free vibration of sandwich beams
using the dynamic stiffness method," Computers & Structures, vol.
Nonlinear random vibrations of a sandwich beam
adaptive to electrorheological materials, Mechanika 3(71): 38-44.
The sandwich beam
structures analysed in the present work are made from isotropic materials, where their skins and core, respectively, are assumed to present an elastic and viscoelastic behaviour.