Date Received: 26-12-2019 / Date Accepted: 14-02-2020
In this study, based on the first shear deformation theory (FSDT),a finite element model using a 3D-Degenerated shell element is developed for dynamic analysis of functionally graded spherical shell panel in the thermal environment. The modulus of elasticity is assumed to be temperature-dependent and graded in the thickness direction according to the simple power-law distribution,while the Poisson factor is assumed to be constant and the temperature is assumed to be nonlinear variation in the thickness direction. The numerical results are also compared with the results available in the literature to validate the present model. On the other hand, the effect of material parameters, geometric dimensions, boundary conditions; damping factor; ratio of forced frequency/natural frequency (ratio Ω/) on the dynamic behavior of FG spherical shell panel in the thermal environment are also investigated in detail and some useful conclusions are drawn.
