Indexed by:期刊论文
Date of Publication:2016-05-12
Journal:功能材料
Included Journals:PKU、ISTIC、CSCD、Scopus
Volume:47
Issue:4
Page Number:4094-4098
ISSN No.:1001-9731
Key Words:镍钛合金;血管支架;有限元;参数化;疲劳
Abstract:自膨胀式血管支架的成功服役主要受制作材料和支架几何参数的影响。大波段 Z 型支架由于其实验室制作工艺简单、便于测试、有好的临床适用性，广泛用于实验分析和有限元分析中。本文主要运用有限元法，分析了自膨式Z型支架几何参数对其力学服役的影响。通过参数化模拟对照，发现增加顶端圆弧半径、增加支撑体长度、增加圆周V型个数均会减小支架径向抗力。但是支架超出血管的尺寸对径向抗力影响不大。对支架脉动受载及易疲劳区位置进行分析表明，支架在服役时，舒张压和收缩压下平均应变和交变应变分布不一致，最先发生疲劳的位置是支架顶端圆弧内侧，受力状态是压缩。
Associate Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Gender:Male
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:School of Materials Science & Engineering
Discipline:Materials Science. Biomedical Engineering
Business Address:Room 224
School of Materials Science and Engineering,
Dalian University of Technology,
Liaoning 116024,
P. R. of China
Contact Information:15641198386
腾讯QQ : 558132
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