Finite Element Analysis of Fluid-Structure Interaction in a Model of an L-Type Mg Alloy Stent-Stenosed Coronary Artery System

doi:10.3390/met12071176

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	Finite Element Analysis of Fluid-Structure Interaction in a Model of an L-Type Mg Alloy Stent-Stenosed Coronary Artery System
	Chen, Yizhe 4,5; Yang, Yuzhuo 3,5; Wang, Hui 4,5; Peng, Wenpeng 2; Lu, Xunan 3,5; Peng, Yijia 3,5; Zheng, Feng 1; Chen, Shanshan 1
刊名	METALS
	2022-07-01
卷号	12 期号:7 页码:17
关键词	L-type degradable magnesium alloy coronary artery stent nonlinear finite element fluid-structure interaction distribution of stress and strain
DOI	10.3390/met12071176
通讯作者	Peng, Wenpeng(pengwenpeng@126.com) ; Chen, Shanshan(sschen@imr.ac.cn)
英文摘要	The coronary stent deployment and subsequent service process is a complex geometric/physical nonlinear and fluid-structure coupling system. Analyzing the distribution of stress-strain on the stent is of great significance in studying the deformation and failure behavior. A coupled system dynamics model comprising stenotic coronary artery vessels and L-type Mg alloy stents was established by applying the polynomial hyperelastic constitutive theory. The nonlinear, significant deformation behavior of the stent was systematically studied. The stress-strain distribution of the coupling system during stent deployment was analyzed. The simulation results show that the edges of the supporting body fixed without a bridge are the weakest zone. The stress changes on the inside of the wave of the supporting body are very large, and the residual stress accumulated in this area is the highest. The peak stress of the plaque and the arterial wall was lower than the damage threshold. The velocity of the blood between the wave crest of the supporting body is large and the streamline distribution is concentrated. In addition, the inner surface pressure on the stent is evenly distributed along its axial dimension. The maximum arterial wall shear stress always appears on the inside of the wave crest of the supporting body fixed with a bridge, and, as such, the largest obstacle to the blood flow is in this zone.
资助项目	National Natural Science Foundation of China[52175360] ; National Natural Science Foundation of China[51901227] ; Young Elite Scientists Spxonsorship Program by CAST[2021QNRC001] ; China Postdoctoral Science Foundation[2022M710062] ; National innovation and entrepreneurship training program for college students[3120400002356] ; Fundamental Research Funds for the Central Universities[2020III004XZ]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	MDPI
WOS记录号	WOS:000831617100001
资助机构	National Natural Science Foundation of China ; Young Elite Scientists Spxonsorship Program by CAST ; China Postdoctoral Science Foundation ; National innovation and entrepreneurship training program for college students ; Fundamental Research Funds for the Central Universities
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/174732]
专题	金属研究所_中国科学院金属研究所
通讯作者	Peng, Wenpeng; Chen, Shanshan
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Huazhong Univ Sci & Technol, Union Hosp, Tongji Med Coll, Wuhan 430022, Peoples R China 3.Wuhan Univ Technol, Sch Automot Engn, Wuhan 430070, Peoples R China 4.Hubei Engn Res Ctr Green & Precis Mat Forming, Wuhan 430070, Peoples R China 5.Wuhan Univ Technol, Hubei Key Lab Adv Technol Automot Components, Wuhan 430070, Peoples R China
推荐引用方式 GB/T 7714	Chen, Yizhe,Yang, Yuzhuo,Wang, Hui,et al. Finite Element Analysis of Fluid-Structure Interaction in a Model of an L-Type Mg Alloy Stent-Stenosed Coronary Artery System[J]. METALS,2022,12(7):17.
APA	Chen, Yizhe.,Yang, Yuzhuo.,Wang, Hui.,Peng, Wenpeng.,Lu, Xunan.,...&Chen, Shanshan.(2022).Finite Element Analysis of Fluid-Structure Interaction in a Model of an L-Type Mg Alloy Stent-Stenosed Coronary Artery System.METALS,12(7),17.
MLA	Chen, Yizhe,et al."Finite Element Analysis of Fluid-Structure Interaction in a Model of an L-Type Mg Alloy Stent-Stenosed Coronary Artery System".METALS 12.7(2022):17.