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 Thermo-mechanical coupling analysis of statistically inhomogeneous porous materials with surface radiation by second-order two-scale method Yang, Zhiqiang1; Sun, Yi1; Cui, Junzhi2; Yang, Zihao3 2017-12-15 Source Publication COMPOSITE STRUCTURES ISSN 0263-8223 Volume 182Pages:346-363 Abstract A novel second-order two-scale method is developed to predict thermo-mechanical coupling performance of statistically inhomogeneous porous materials. For these materials, the sophisticated microstructure information of pores, including their shapes, orientations, sizes, spatial distributions, volume fractions and so on, leads to changes of the macroscopic thermo-mechanical properties. Also, radiation effect at microscale is considered in this study which has an important influence on the macroscopic temperature fields. Firstly, the microscopic configuration for the structure with random distribution is briefly characterized by a periodic layout of unit cells. Secondly, the second-order two-scale formulations for computing the thermo-mechanical coupling problems which consider the interaction between temperature and displacement fields are given in detail. Then, the statistical prediction algorithm based on the two-scale model is brought forward. Finally, some numerical examples for porous materials with varying probability distribution models are calculated by the algorithm proposed, and compared with the data by the theoretical method and experimental results. The comparison shows that the statistical two-scale model is validated for determination of the thermo-mechanical coupling properties of porous materials and demonstrates its potential applications in actual engineering computation. Keyword Second-order two-scale method Radiation effect Statistically inhomogeneous materials Thermo-mechanical coupling performance DOI 10.1016/j.compstruct.2017.09.050 Language 英语 Funding Project Fundamental Research Funds for the Central Universities ; China Postdoctoral Science Foundation[2015M580256] ; China Postdoctoral Science Foundation[2016T90276] ; National Natural Science Foundation of China[11701123] WOS Research Area Materials Science WOS Subject Materials Science, Composites WOS ID WOS:000413321800032 Publisher ELSEVIER SCI LTD Citation statistics Document Type 期刊论文 Identifier http://ir.amss.ac.cn/handle/2S8OKBNM/29123 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, Heilongjiang, Peoples R China2.Chinese Acad Sci, Acad Math & Syst Sci, LSEC, ICMSEC, Beijing 100190, Peoples R China3.Northwestern Polytech Univ, Dept Appl Math, Xian 710129, Peoples R China Recommended CitationGB/T 7714 Yang, Zhiqiang,Sun, Yi,Cui, Junzhi,et al. Thermo-mechanical coupling analysis of statistically inhomogeneous porous materials with surface radiation by second-order two-scale method[J]. COMPOSITE STRUCTURES,2017,182:346-363. APA Yang, Zhiqiang,Sun, Yi,Cui, Junzhi,&Yang, Zihao.(2017).Thermo-mechanical coupling analysis of statistically inhomogeneous porous materials with surface radiation by second-order two-scale method.COMPOSITE STRUCTURES,182,346-363. MLA Yang, Zhiqiang,et al."Thermo-mechanical coupling analysis of statistically inhomogeneous porous materials with surface radiation by second-order two-scale method".COMPOSITE STRUCTURES 182(2017):346-363.
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