期刊
APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION
卷 37, 期 7, 页码 879-902出版社
SHANGHAI UNIV
DOI: 10.1007/s10483-016-2097-9
关键词
functionally graded material (FGM); sandwich truncated conical shell; stiffener; elastic foundation; buckling analysis
资金
- Vietnam National Foundation for Science and Technology Development [107.02-2015.11]
An analytical solution for buckling of an eccentrically stiffened sandwich truncated conical shell is investigated. The shell consists of two functionally graded material (FGM) coating layers and a core layer which are metal or ceramic subjected to an axial compressive load and an external uniform pressure. Shells are reinforced by stringers and rings, in which the material properties of shells and stiffeners are graded in the thickness direction following a general sigmoid law distribution. Two models of coated shell-stiffener arrangements are investigated. The change of the spacing between stringers in the meridional direction is taken into account. A couple set of three-variable-coefficient partial differential equations in terms of displacement components are solved by the Galerkin method. A closed-form expression for determining the buckling load is obtained. The numerical examples are presented and compared with previous works.
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