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论文类型：期刊论文

发表时间：2013-12-01

发表刊物：COMPOSITES PART B-ENGINEERING

收录刊物：SCIE、EI

卷号：55

页面范围：208-214

ISSN号：1359-8368

关键字：Ceramic-matrix composites (CMCs); Buckling; Thermal properties; Analytical modeling; Symplectic system

摘要：This paper derives new analytical solutions for thermal bifurcation buckling of cylindrical shells made of functionally graded materials (FGMs) with temperature-dependent material properties. The Donnell's shell theory is adopted and a symplectic solution methodology is established through the Hamiltonian variational principle. The fundamental buckling problem is then converted into the solving for the symplectic eigenvalues and eigenvectors. The solutions reveal that boundary conditions and temperature-dependent FGM properties have significant influence on thermal buckling behavior. It is also concluded that temperature field conditions cannot be neglected for FGCSs being rich in thermal sensitive compositions. (C) 2013 Elsevier Ltd. All rights reserved.