Non-Linear Stability of Conical Shell Structures Including a Functionally Graded Core
A.H. Sofiyeva, Z. Aya, A.M Najafovb, Z. Mammadovc and E. Schnackd
aDepartment of Civil Engineering, Suleyman Demirel University, Isparta, Turkey
bInstitute for Machine Elements and Lifting-and-Shifting Machines of Azerbaijan Technical University, Baku, Azerbaijan
cDepartment of Civil Engineering, Harran University, Sanliurfa, Turkey
dInstitute of Solid Mechanics, Karlsruhe Institute of Technology, Karlsruhe, Germany
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In this study, the non-linear stability of three-layered conical shells with functionally graded core have not been investigated previously. The purpose of this paper is to study this problem. The large deflection theory with von Karman-Donnell-type of kinematic non-linearity is used to deduce the basic equations. The basic equations are solved analytically by using superposition and Galerkin methods. The influences of several parameters on the dimensionless non-linear critical axial loads are discussed.

DOI: 10.12693/APhysPolA.125.192
PACS numbers: 61.43.Bn, 62.20.mq