Thermal buckling of laminated composite conical shell panel with and without piezoelectric layer with random material properties

Abstract

In this paper, the sensitivity of randomness in material parameters on the thermal buckling of conical shells embedded with and without piezoelectric layer is examined. A higher order shear deformation theory is used to model the system behaviour of the conical shell. The lamina material properties are modelled as basic random variables. A deterministic finite element method in conjunction with the first-order perturbation technique is employed to handle the randomness in the material properties. Typical numerical results for the second order statistics of the linear thermal buckling load of the composite conical shells/panels with and without piezoelectric layer are obtained. Mean value results are validated with those available in the literature and standard deviation results are also validated with an independent Monte Carlo simulation.

Thermoelectrically induced nonlinear free vibration analysis of piezo laminated composite conical shell panel with random fiber orientation

“…Bhimaraddy et al [7] developed an isoparametric finite element analysis for laminated shells of revolution by taking into account the effects of shear deformation and rotary inertia. Singh et al [8,9] developed a finite element method in conjunction with the first order perturbation technique for thermal buckling analysis of laminated composite conical shell panel with and without piezoelectric layers. The theory is developed for nonlinear free vibration of the conical shell [10,11].…”