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论文类型：期刊论文

发表时间：2016-04-01

发表刊物：FINITE ELEMENTS IN ANALYSIS AND DESIGN

收录刊物：SCIE、EI

卷号：111

页面范围：1-18

ISSN号：0168-874X

关键字：Dynamic analysis; Substructure; Composite beam and plate; Extended multiscale finite element method; Higher-order boundary condition

摘要：A computationally efficient method is proposed to construct complicated boundary conditions based on the substructural boundary assumption, which can simplify the complex multilayered composite beam and plate to a reducible structure dimensionally. Moreover, the proposed method can construct various boundary conditions flexibly by the transformation matrix, especially the rational higher-order displacement functions, which can be easily extended into the dynamic analysis by the time integration algorithm. The proposed method shows the consistency with the extended multiscale finite element method (EMsFEM) of the linear boundary condition [40,41]. Finally, some static and dynamic numerical examples are discussed including multilayered beams and the composite lattice structure, which reveal the high accuracy and efficiency of the method. (C) 2015 Elsevier B.V. All rights reserved.