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论文类型：期刊论文

发表时间：2019-11-15

发表刊物：MATERIALS & DESIGN

收录刊物：EI、SCIE

卷号：182

ISSN号：0264-1275

关键字：Functionally graded material; Hybrid composite; Cylindrical shell; Buckling; Critical buckling load

摘要：An accurate nonlinear buckling model for functional graded multilayer hybrid composites cylindrical shells under combined loads is proposed. A two-steps micromechanical approach including Halpin-Tsai and Mori-Tanaka method is employed to obtain the effective material properties of hybrid composites. A unified shell theory including Donnell's shell theory, first-order shear deformation theory and high-order shear deformation theory are adopted to derive the governing buckling equations. The axisymmetric pre-buckling deformation is taken into consideration in the solution procedure. Highly accurate critical buckling loads and analytical buckling mode shapes are obtained by Galerkin's method. The accuracy of the present solutions is validated by comparing with results of existing literature and numerical simulations. Effects of influencing parameters of reinforcements and their interactions on the structural stability of the hybrid composites cylindrical shells are revealed. (C) 2019 The Authors. Published by Elsevier Ltd.