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论文类型：期刊论文

发表时间：2014-10-01

发表刊物：FINITE ELEMENTS IN ANALYSIS AND DESIGN

收录刊物：SCIE、EI、Scopus

卷号：88

页面范围：97-117

ISSN号：0168-874X

关键字：Nonlinear thermoelastic analysis; Heterogeneous multiphase material; Pre-correction multiscale strategy; Numerical base functions

摘要：A pre-correction multiscale strategy is developed for the nonlinear thermoelastic analysis of heterogeneous multiphase materials with temperature-dependent properties. In this strategy, based on the multiscale finite element formulation, the numerical base functions (NBFs) are constructed in order to bring the microscopic heterogeneous properties to the macroscopic response. By constructing the microscopic perturbed pre-correction the inaccuracy of the NBFs due to the temperature-dependent properties is better considered, as well as the influence of the microscopic loads. Then the pre-correction multiscale strategy is implemented for the nonlinear heat conduction and thermoelastic analysis. Finally several representative numerical examples are presented and the results indicate that the proposed strategy is efficient and accurate for modeling heterogeneous multiphase materials. (C) 2014 Elsevier B.V. All rights reserved.