Homogenization of the average thermo-elastoplastic properties of particle reinforced metal matrix composites: The minimum representative volume element size

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	Homogenization of the average thermo-elastoplastic properties of particle reinforced metal matrix composites: The minimum representative volume element size
	X. X. Zhang; B. L. Xiao; H. Andra; Z. Y. Ma
	2014
发表期刊	Composite Structures
ISSN	0263-8223
卷号	113 页码:459-468
摘要	The average thermo-elastoplastic properties of particle reinforced metal matrix composites (PRMMC) including the average coefficient of thermal expansion (CTE), Young's modulus, Poisson's ratio and isotropic hardening function are investigated. Computational homogenization method based on 3D realistic microstructures (RMs) is employed. Unit cell microstructure (UCM) based model and analytical models are also employed for comparison. As an illustration, 17 vol.%SiCp (3 mu m)/2124A1 composite is studied. Compared to RMs, UCM underestimates the average GTE and Poisson's ratio, while it overestimates the average Young's modulus and isotropic hardening function. The minimum representative volume element (RVE) size for determining the average CTE, Young's modulus and Poisson' ratio is (delta= 15, (delta = 20 and delta = 20, respectively, where delta is the size ratio of microstructure model, which is defined by the ratio of the side length of the RVE to the nominal mean radius of reinforcement. The minimum size of RVE for estimating average isotropic hardening function of plastic deformation is dependent on both the temperature and the plastic deformation condition. (C) 2014 Elsevier Ltd. All rights reserved.
部门归属	[zhang, x. x. ; xiao, b. l. ; ma, z. y.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [zhang, x. x. ; andrae, h.] fraunhofer inst ind math, d-67663 kaiserslautern, germany. ; ma, zy (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china. ; zyma@imr.ac.cn
关键词	Representative Volume Element Realistic Microstructure Computational Homogenization Thermo-elastoplastic Properties Particle Reinforced Metal Matrix Composites Elastic Properties Principles Simulation Behavior Media
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/72972
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. X. Zhang,B. L. Xiao,H. Andra,et al. Homogenization of the average thermo-elastoplastic properties of particle reinforced metal matrix composites: The minimum representative volume element size[J]. Composite Structures,2014,113:459-468.
APA	X. X. Zhang,B. L. Xiao,H. Andra,&Z. Y. Ma.(2014).Homogenization of the average thermo-elastoplastic properties of particle reinforced metal matrix composites: The minimum representative volume element size.Composite Structures,113,459-468.
MLA	X. X. Zhang,et al."Homogenization of the average thermo-elastoplastic properties of particle reinforced metal matrix composites: The minimum representative volume element size".Composite Structures 113(2014):459-468.