Peridynamic modeling with energy-based surface correction for fracture simulation of random porous materials

doi:10.1016/j.tafmec.2021.102987

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	Peridynamic modeling with energy-based surface correction for fracture simulation of random porous materials
	Shen, Shangkun 1; Yang, Zihao 1,3; Han, Fei 2,3; Cui, Junzhi 1,4; Zhang, Jieqiong 5
	2021-08-01
发表期刊	THEORETICAL AND APPLIED FRACTURE MECHANICS
ISSN	0167-8442
卷号	114 页码:13
摘要	This study presents a peridynamic model with an improved energy-based surface correction to simulate fractures of random porous materials. There exists a surface effect due to incomplete neighborhoods of boundary or nearboundary points in peridynamics. A surface correction approach is proposed to correct the surface effect on or near the boundaries, including outer boundaries of the materials and boundaries of inner pores. The correction factor is obtained based on the equivalence between the strain energy density in classical continuum mechanics and the elastic energy density in peridynamics. The algorithm procedure for the corrected model based on the finite element analysis is brought forward in detail. The availability of the proposed corrected peridynamic model is verified by comparing the results against the results by the classical continuum mechanics model. Moreover, the effect of the surface correction on the crack growth path and the impact of random distributions of pores on the fractures of porous materials are also investigated. Numerical results demonstrate that the present method can effectively correct the surface effect of random porous materials, especially around the boundary of inner pores, where shows a more obvious surface effect.
DOI	10.1016/j.tafmec.2021.102987
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[11872016] ; Fundamental Research Funds for the Central Universities[310201911cx017] ; fund of the State Key Laboratory of Structural Analysis for Industrial Equipment in DUT[GZ19118] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDC06030102] ; Natural Science Foundation of Shaanxi Province of China[2019JQ170]
WOS研究方向	Engineering ; Mechanics
WOS类目	Engineering, Mechanical ; Mechanics
WOS记录号	WOS:000675852400003
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/58933
专题	中国科学院数学与系统科学研究院
通讯作者	Yang, Zihao; Han, Fei
作者单位	1.Northwestern Polytech Univ, Sch Math & Stat, Xian 710072, Peoples R China 2.Dalian Univ Technol, Dept Engn Mech, Dalian 116023, Peoples R China 3.Dalian Univ Technol, State Key Lab Struct Anal Ind, Equipment, Dalian 116023, Peoples R China 4.Chinese Acad Sci, Acad Math & Syst Sci, ICMSEC, LSEC, Beijing 100190, Peoples R China 5.Northwest Univ, Sch Math, Xian 710069, Peoples R China
推荐引用方式 GB/T 7714	Shen, Shangkun,Yang, Zihao,Han, Fei,et al. Peridynamic modeling with energy-based surface correction for fracture simulation of random porous materials[J]. THEORETICAL AND APPLIED FRACTURE MECHANICS,2021,114:13.
APA	Shen, Shangkun,Yang, Zihao,Han, Fei,Cui, Junzhi,&Zhang, Jieqiong.(2021).Peridynamic modeling with energy-based surface correction for fracture simulation of random porous materials.THEORETICAL AND APPLIED FRACTURE MECHANICS,114,13.
MLA	Shen, Shangkun,et al."Peridynamic modeling with energy-based surface correction for fracture simulation of random porous materials".THEORETICAL AND APPLIED FRACTURE MECHANICS 114(2021):13.