Energy management and stability analysis of the inhomogeneous viscoelastic doubly-curved system via efficient 3D poroelasticity approach

Abstract

This study investigates multi-scale hybrid laminated nanocomposite reinforced (MHLNR) structures, promising metamaterials which can be used for absorbing energy. The structure is able to absorb energy by means of its elastic deflection. For this problem, dynamic stability and absorbed energy for a MHLNR curved panel resting on a non-polynomial viscoelastic base are studied utilizing three-dimensional poroelasticity theory. In order to study the stability analysis, a viscoelastic base is presented as a non-polynomial viscoelastic. The effect of such parameters as the torsional parameter, Winkler-Pasternak parameters, the volume fraction of carbon fiber, porosity, length to radius ratio, span angle, the coefficient for friction, damping factor, compressibility coefficient, as well as initial axially stress on the dynamic responses of the MHLNR panel which is curved and rested on a non-polynomial viscoelastic are studied in detail. It is notable from the results that the radial stress has little dependence on the value of the parameters related to the foundation for the energy absorption. In addition, heightening the porosity, compressibility, as well as friction coefficients can lead to a decrease in the possibility of energy absorption of the sandwich curved panel.