Dual-variable-horizon peridynamics and continuum mechanics coupling modeling and adaptive fracture simulation in porous materials

doi:10.1007/s00366-022-01730-6

	Dual-variable-horizon peridynamics and continuum mechanics coupling modeling and adaptive fracture simulation in porous materials
	Shen Shangkun 1; Yang Zihao 1; Cui Junzhi 1,2; Zhang Jieqiong 3
刊名	ENGINEERING WITH COMPUTERS
	2022-10-12
页码	21
关键词	Porous materials Peridynamics Surface correction Hybrid model Adaptive algorithm Fracture simulation
ISSN号	0177-0667
DOI	10.1007/s00366-022-01730-6
英文摘要	In this paper, we present a hybrid dual-variable-horizon peridynamics/continuum mechanics modeling approach and a strength-induced adaptive coupling algorithm to simulate brittle fractures in porous materials. Peridynamics theory is promising for fracture simulation since it allows discontinuities in the displacement field. However, they remain computationally expensive. Besides, there exists the surface effect in peridynamics due to the incomplete neighborhoods near the boundaries, including the outer boundaries and the boundaries of inner pores in porous materials. The proposed approach couples continuum mechanics and peridynamics into a closed equation system and an adaptive algorithm is developed to activate the peridynamics according to a strength criterion. In addition, the surface effect is corrected by introducing an improved peridynamic model with dual and variable horizons. We conduct the simulations using the relevant discretization scheme in each domain, i.e., the discontinuous Galerkin finite-element in the peridynamic domain and the continuous finite-element in the continuum mechanics domain. Two-dimensional numerical examples illustrate that successful fracture simulations of random porous materials can be achieved by this approach. In addition, the impact of distribution and size of pores on the fractures of porous materials is also investigated.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDC06030102] ; Aeronautical Science Foundation of China[2020001053002] ; National Key R&D Program of China[2020YFA0713603] ; National Natural Science Foundation of China[51739007]
WOS研究方向	Computer Science ; Engineering
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000866326200001
内容类型	期刊论文
源URL	[http://ir.amss.ac.cn/handle/2S8OKBNM/60868]
专题	中国科学院数学与系统科学研究院
通讯作者	Yang Zihao
作者单位	1.Northwestern Polytech Univ, Sch Math & Stat, Xian 710072, Peoples R China 2.Chinese Acad Sci, Acad Math & Syst Sci, LSEC, ICMSEC, Beijing 100190, Peoples R China 3.Northwest Univ, Sch Math, Xian 710127, Peoples R China
推荐引用方式 GB/T 7714	Shen Shangkun,Yang Zihao,Cui Junzhi,et al. Dual-variable-horizon peridynamics and continuum mechanics coupling modeling and adaptive fracture simulation in porous materials[J]. ENGINEERING WITH COMPUTERS,2022:21.
APA	Shen Shangkun,Yang Zihao,Cui Junzhi,&Zhang Jieqiong.(2022).Dual-variable-horizon peridynamics and continuum mechanics coupling modeling and adaptive fracture simulation in porous materials.ENGINEERING WITH COMPUTERS,21.
MLA	Shen Shangkun,et al."Dual-variable-horizon peridynamics and continuum mechanics coupling modeling and adaptive fracture simulation in porous materials".ENGINEERING WITH COMPUTERS (2022):21.