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High-order three-scale computational method for dynamic thermo-mechanical problems of composite structures with multiple spatial scales

文献类型：期刊论文

作者Dong, Hao4; Zheng, Xiaojing5; Cui, Junzhi1; Nie, Yufeng2; Yang, Zhiqiang3; Yang, Zihao2
刊名INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
出版日期2019-09-01
卷号169页码:95-121
关键词Multiscale asymptotic analysis Dynamic thermo-mechanical problems Micro-meso-macro HOTS solutions HOTS numerical algorithm Multiple spatial scales
ISSN号0020-7683
DOI10.1016/j.ijsolstr.2019.04.017
英文摘要In this paper, a novel high-order three-scale (HOTS) computational method is presented to analyze the dynamic thermo-mechanical performance of composite structures with multiple spatial scales. The heterogeneities of composite structures are taken into account by periodic distributions of representative unit cells on the mesoscale and microscale. By virtue of multiscale asymptotic analysis, a new unified micro-meso-macro HOTS approximate solutions are successfully constructed for these multiscale problems. Two classes of auxiliary cell functions are established on the mesoscale and microscale, respectively. Also, two kinds of equivalent material parameters are calculated by up-scaling procedure on the mesoscale and microscale, and the homogenization problems are subsequently defined on global structure. Then, the comparisons of approximate performance are obtained in the pointwise sense for the conventional two-scale solutions, low-order three-scale (LOTS) solutions and HOTS solutions, which illustrate the necessity of developing HOTS solutions for simulating the dynamic thermo-mechanical performances of composite structures with multiple spatial scales. Furthermore, the corresponding HOTS numerical algorithm based on finite element method (FEM) and Finite difference method (FDM) is brought forward in details. Finally, some numerical examples are reported to demonstrate the usability of our HOTS computational method to simulate the dynamic thermo-mechanical behaviors of composite structures with multiple spatial scales. This study offers a unified three-scale computational framework that enables the simulation and analysis of dynamic thermo-mechanical problems of composite structures with multiple spatial scales. (C) 2019 Elsevier Ltd. All rights reserved.
资助项目China Postdoctoral Science Foundation[2018M643573] ; Fundamental Research Funds for the Central Universities[JB180703] ; National Natural Science Foundation of China[51739007] ; National Natural Science Foundation of China[11471262] ; National Natural Science Foundation of China[11501449] ; National Natural Science Foundation of China[11325212] ; National Basic Research Program of China[2012CB025904] ; National Basic Research Program of China[2014CB744100] ; Key Technology Research of FRP-Concrete Composite Structure and Center for high performance computing of Northwestern Polytechnical University
WOS研究方向Mechanics
语种英语
WOS记录号WOS:000470050300007
出版者PERGAMON-ELSEVIER SCIENCE LTD
源URL[http://ir.amss.ac.cn/handle/2S8OKBNM/34894]  
专题计算数学与科学工程计算研究所
通讯作者Dong, Hao; Yang, Zihao
作者单位1.Chinese Acad Sci, Acad Math & Syst Sci, ICMSEC, LSEC, Beijing 100190, Peoples R China
2.Northwestern Polytech Univ, Sch Sci, Dept Appl Math, Xian 710129, Shaanxi, Peoples R China
3.Harbin Inst Technol, Dept Astronaut Sci & Mech, Harbin 150001, Heilongjiang, Peoples R China
4.Xidian Univ, Sch Math & Stat, Xian 710071, Shaanxi, Peoples R China
5.Xidian Univ, Sch Mechanoelect Engn, Xian 710071, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Dong, Hao,Zheng, Xiaojing,Cui, Junzhi,et al. High-order three-scale computational method for dynamic thermo-mechanical problems of composite structures with multiple spatial scales[J]. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES,2019,169:95-121.
APA Dong, Hao,Zheng, Xiaojing,Cui, Junzhi,Nie, Yufeng,Yang, Zhiqiang,&Yang, Zihao.(2019).High-order three-scale computational method for dynamic thermo-mechanical problems of composite structures with multiple spatial scales.INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES,169,95-121.
MLA Dong, Hao,et al."High-order three-scale computational method for dynamic thermo-mechanical problems of composite structures with multiple spatial scales".INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES 169(2019):95-121.

入库方式： OAI收割

来源：数学与系统科学研究院

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