Thermomechanical instability of functionally graded truncated conical shells with temperature-dependent material

Abstract

The thermomechanical instability of truncated conical shells made of functionally graded material under different uniform temperature rises is studied in this paper. It is assumed that the shell is a mixture of metal and ceramic, where its properties change as functions of the shell thickness. The mechanical properties of metal and ceramic are assumed to be temperature dependent. The governing equations are based on the first-order theory of shells and the Sanders non-linear kinematics equations. The results are obtained under different thermal conditions for three types of mechanical loading, namely hydrostatic pressure, axial compressive loading, and their combination. The results are validated with the known data in the literature.

Microstructure/geometric imperfection sensitivity on the thermo-mechanical nonlinear stability behavior of functionally graded plates using four variable refined structural kinematics

“…With the increasing use of these materials for structural elements in several engineering applications, it needs to analyze the structural characteristics of FGMs plates. [2][3][4][5] Although there are several reports available on the stability of functionally graded plate (FGPs), the articles on nonlinear stability of porous FGPs with geometric imperfection subjected to the thermomechanical environment are limited in number. Shariat et al 6 studied the buckling response of geometrically imperfect functionally graded plate (FGP) using classical plate theory (CPT).…”