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 A stochastic multiscale method for thermo-mechanical analysis arising from random porous materials with interior surface radiation Yang, Zhiqiang1; Cui, Junzhi2; Sun, Yi1; Liu, Yizhi1; Xiao, Youcai1 2017-02-01 Source Publication ADVANCES IN ENGINEERING SOFTWARE ISSN 0965-9978 Volume 104Pages:12-27 Abstract A stochastic multiscale computational method for predicting the thermo-mechanical coupling properties of random porous materials is proposed. Here, the thermal radiation effect at microscale of the material consisting of randomly distributed pores is considered, which has an important impact on the macroscopic temperature and stress fields. A novel unified homogenization procedure, based on two-scale asymptotic expressions, has been established. The higher-order multiscale formulations for solving the dynamic thermo-mechanical coupling problem with the inertia term, coupling term and radiation term are given successively. Then, the statistical prediction algorithm based on the multiscale method is described in detail. Finally, numerical examples for porous materials with varying probability distribution models are calculated by the proposed algorithm, and compared with the data by finite element method with very fine meshes. The comparison shows that the stochastic multiscale computational method developed in this paper is useful for determination of the thermo-mechanical properties of porous materials and demonstrates its potential applications in engineering and technology. (C) 2016 Elsevier Ltd. All rights reserved. Keyword Stochastic multiscale method Interior surface radiation Random porous materials Thermo-mechanical analysis DOI 10.1016/j.advengsoft.2016.11.006 Language 英语 Funding Project Special Funds for National Basic Research Program of China (973 Program)[2010CB832702] ; National Natural Science Foundation of China[90916027] ; China Postdoctoral Science Foundation[2015M580256] ; China Postdoctoral Science Foundation[2016T90276] WOS Research Area Computer Science ; Engineering WOS Subject Computer Science, Interdisciplinary Applications ; Computer Science, Software Engineering ; Engineering, Multidisciplinary WOS ID WOS:000392680600002 Publisher ELSEVIER SCI LTD Citation statistics Document Type 期刊论文 Identifier http://ir.amss.ac.cn/handle/2S8OKBNM/24570 Collection 计算数学与科学工程计算研究所 Corresponding Author Yang, Zhiqiang Affiliation 1.Harbin Inst Technol, Dept Astronaut Sci & Mech, Harbin 150001, Peoples R China2.Chinese Acad Sci, Acad Math & Syst Sci, ICMSEC, LSEC, Beijing 100190, Peoples R China Recommended CitationGB/T 7714 Yang, Zhiqiang,Cui, Junzhi,Sun, Yi,et al. A stochastic multiscale method for thermo-mechanical analysis arising from random porous materials with interior surface radiation[J]. ADVANCES IN ENGINEERING SOFTWARE,2017,104:12-27. APA Yang, Zhiqiang,Cui, Junzhi,Sun, Yi,Liu, Yizhi,&Xiao, Youcai.(2017).A stochastic multiscale method for thermo-mechanical analysis arising from random porous materials with interior surface radiation.ADVANCES IN ENGINEERING SOFTWARE,104,12-27. MLA Yang, Zhiqiang,et al."A stochastic multiscale method for thermo-mechanical analysis arising from random porous materials with interior surface radiation".ADVANCES IN ENGINEERING SOFTWARE 104(2017):12-27.
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