Micro-macro homogenization of granular materials based on the average-field theory of Cosserat continuum

IMECH-IR > 流固耦合系统力学重点实验室

	Micro-macro homogenization of granular materials based on the average-field theory of Cosserat continuum
	Liu, QP; Liu XY(刘晓宇); Li, XK; Li SH(李世海); Liu, QP (reprint author), Dalian Jiaotong Univ, Sch Civil & Safety Engn, Dalian 116028, Peoples R China.
发表期刊	ADVANCED POWDER TECHNOLOGY
	2014-01
卷号	25 期号:1 页码:436-449
ISSN	0921-8831
摘要	This paper performs further study on the micro-macro homogenization approach of granular materials (Li et al., 2010) based on the advancement of Hill's lemma for Cosserat continuum (Liu, 2013). Firstly, the average couple stress tensor, expressed as the volume integration of quantities over the representative volume element (RVE) in the average-field theory of Cosserat continuum, is further deduced and expressed in terms of discrete quantities on the discrete particle assembly RVE of granular materials. The expression is also discussed and compared with other typical definitions of the effective couple stress tensor for granular materials in the literature. Then, rate forms of micromechanically based constitutive models consistent with different types of RVE boundary conditions are derived and discussed. Since the presented micro-macro homogenization approach is used, not only the micro-macro energy equivalence is satisfied, but also the microstructure and its evolution can be taken into account in the constitutive formulation with no need of specifying macroscopic phenomenological constitutive model. (C) 2013 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.
关键词	Granular Materials Average-field Theory Effective Couple Stress Tensor Micromechanically Based Constitutive Models
学科领域	Engineering
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000334015500049
项目资助者	The authors are pleased to acknowledge the support of this work by the National Natural Science Foundation of China through the projects with Grant Nos. 11202042 and U1234209.
课题组名称	LMFS工程地质体力学(LEM)
论文分区	二类/Q2
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/48757
专题	流固耦合系统力学重点实验室
通讯作者	Liu, QP (reprint author), Dalian Jiaotong Univ, Sch Civil & Safety Engn, Dalian 116028, Peoples R China.
推荐引用方式 GB/T 7714	Liu, QP,Liu XY,Li, XK,et al. Micro-macro homogenization of granular materials based on the average-field theory of Cosserat continuum[J]. ADVANCED POWDER TECHNOLOGY,2014,25,1,:436-449.
APA	Liu, QP,Liu XY,Li, XK,Li SH,&Liu, QP .(2014).Micro-macro homogenization of granular materials based on the average-field theory of Cosserat continuum.ADVANCED POWDER TECHNOLOGY,25(1),436-449.
MLA	Liu, QP,et al."Micro-macro homogenization of granular materials based on the average-field theory of Cosserat continuum".ADVANCED POWDER TECHNOLOGY 25.1(2014):436-449.

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