STABILITY ANALYSIS OF FUNCTIONALLY GRADED CYLINDRICAL SHELLS

Abstract

The paper presents the stability finite element analysis for the functionally graded cylindrical shells according to the moderate rotation theory. The study employs ANS 9-node elements and total Lagrangian finite element form. The cylindrical shells are connected by two sides and subjected to a concentrated load. The effect of thickness and the degree of variation of the material’s mechanical properties are considered. The nonlinear equations are solved by the Riks-Wemper displacement control method. The stability analysis results of the functionally graded cylindrical shells are compared with those obtained by nonlinear Karman theory.