Release Time:2019-10-22  Hits:

Indexed by: Journal Article

Date of Publication: 2016-04-01

Journal: FINITE ELEMENTS IN ANALYSIS AND DESIGN

Included Journals: EI、SCIE

Volume: 111

Page Number: 1-18

ISSN: 0168-874X

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

Abstract: 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.