Numerical manifold computational homogenization for hydro-dynamic analysis of discontinuous heterogeneous porous media

doi:10.1016/j.cma.2021.114254

	Numerical manifold computational homogenization for hydro-dynamic analysis of discontinuous heterogeneous porous media
	Wu, Wenan 2; Yang, Yongtao 1; Zheng, Hong 2; Zhang, Limei 2; Zhang, Ning 2
刊名	COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
	2022
卷号	388 页码:53
关键词	Multiscale analysis First-order homogenization Numerical manifold method Discontinuous heterogeneous porous media Wave propagation
ISSN号	0045-7825
DOI	10.1016/j.cma.2021.114254
英文摘要	In this paper, a mixed two-scale numerical manifold computational homogenization model is presented for dynamic analysis and wave propagation of the discontinuous heterogeneous porous media based on the first-order homogenization theory. Instead of the conventional version which neglects microscopic dynamics, the extended Hill-Mandel lemma is employed to incorporate the microscale dynamic effects. Microscale and macroscale Initial Boundary Value Problems (IBVPs) are solved simultaneously using the Numerical Manifold Method (NMM) with the information conveyed between different scales. The microscale IBVP is solved under Linear Boundary Conditions (LBCs) and Periodic Boundary Conditions (PBCs) that are defined with macroscale solid displacement, fluid pressure and their first-order gradients. The discontinuous macroscale IBVP is solved iteratively using the Newton method with the macroscale internal forces and Jacobian determined by solving the microscale IBVPs. A stick-slip contact model is implemented using an augmented Lagrange multiplier method to impose frictional contact conditions along the macroscale discontinuities. Through various numerical simulations, the presented two-scale NMM is shown to be able to effectively and accurately capture the fully dynamic and wave propagation responses of the discontinuous heterogeneous porous media under the fluid injection and impact loading condition. (C) 2021 Elsevier B.V. All rights reserved.
资助项目	Youth Innovation Promotion Association CAS[2020327] ; National Natural Science Foundation of China[12072357] ; National Natural Science Foundation of China[5213000723]
WOS研究方向	Engineering ; Mathematics ; Mechanics
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000720475900002
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/28256]
专题	中科院武汉岩土力学所
通讯作者	Yang, Yongtao
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
推荐引用方式 GB/T 7714	Wu, Wenan,Yang, Yongtao,Zheng, Hong,et al. Numerical manifold computational homogenization for hydro-dynamic analysis of discontinuous heterogeneous porous media[J]. COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING,2022,388:53.
APA	Wu, Wenan,Yang, Yongtao,Zheng, Hong,Zhang, Limei,&Zhang, Ning.(2022).Numerical manifold computational homogenization for hydro-dynamic analysis of discontinuous heterogeneous porous media.COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING,388,53.
MLA	Wu, Wenan,et al."Numerical manifold computational homogenization for hydro-dynamic analysis of discontinuous heterogeneous porous media".COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING 388(2022):53.