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Indexed by:期刊论文

Date of Publication:2013-05-01

Journal:COMPUTERS & STRUCTURES

Included Journals:SCIE、EI

Volume:121

Page Number:32-49

ISSN No.:0045-7949

Key Words:Coupling extended multiscale finite element method; Thermoelastic analysis; Heterogeneous multiphase materials; Periodic boundary condition; Oversampling technique

Abstract:A coupling extended multiscale finite element method is developed for the thermoelastic analysis of heterogeneous multiphase materials. In the method, the weak coupling of thermal and structure is considered and two sets of numerical base functions are constructed for the temperature and displacement fields, respectively. To improve the accuracy of the base functions, the periodic boundary conditions and the oversampling technique are adopted. Numerical results of several representative examples indicate that the proposed method can not only capture the fine scale information in the macroscopic computation but also recover the fine scale solution conveniently. (C) 2013 Elsevier Ltd. All rights reserved.