In this contribution, a new modeling approach of frequency
dependent viscoelastic sandwich structures has been proposed
for vibration analysis. To this end, the free vibration problem
was solved by coupling a solid–shell finite element and the
Diamant approach. Different material and geometric configurations
were investigated, which include parameter values ranging
beyond the classical model limitations pointed out in [17]. The
obtained results emphasize the advantages of adopting the proposed
solid–shell concept in this type of applications and the
associated benefits, especially in terms of coarse-mesh accuracy
and efficient kinematic description. This study will be extended
to nonlinear vibrations of sandwich structures including plates.
Another possible extension would be the modeling of multilayer
structures using a single layer of elements with the possibility
of assigning various material responses at different integration
points.