| 无镍不锈钢冠脉支架力学行为的有限元模拟 |
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| 引用本文： | 毛志刚,谭丽丽,郑丰,黄洁雯,樊新民,杨柯. 无镍不锈钢冠脉支架力学行为的有限元模拟[J]. 材料研究学报, 2012, 0(2): 125-131 |
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| 作者姓名： | 毛志刚 谭丽丽 郑丰 黄洁雯 樊新民 杨柯 |
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| 作者单位： | 南京理工大学;中国科学院金属研究所 |
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| 基金项目： | 国家重点基础研究发展计划(973)2012CB619101资助项目~~ |
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| 摘 要： | 以无镍不锈钢为支架材料,以冠脉支架结构为研究对象,对其压缩和扩张过程中的力学行为和柔顺性能进行了模拟计算,研究了支架压握并扩张后的轴向回弹率、径向回弹率以及不同端部网丝宽度支架的变形行为,计算出支架的弯矩-挠度曲线及支架的柔软度。结果表明,所研究的无镍不锈钢支架具有较小的轴向与径向回弹率,在变形过程中表现出良好的弹性弯曲变形性能。
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| 关 键 词： | 材料科学基础学科 无镍不锈钢 冠脉支架 力学行为 有限元模拟 |
Finite Element Analysis on Mechanical Behaviors of Nickel-Free Stainless Steel Coronary Stent |
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| MAO Zhigang,TAN Lili, ZHENG Feng,HUANG Jiewen,FAN Xinmin,YANG Ke. Finite Element Analysis on Mechanical Behaviors of Nickel-Free Stainless Steel Coronary Stent[J]. Chinese Journal of Materials Research, 2012, 0(2): 125-131 |
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| Authors: | MAO Zhigang TAN Lili ZHENG Feng HUANG Jiewen FAN Xinmin YANG Ke |
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| Affiliation: | 1.Nanjing University of Science and Technology,Nanjing,210094 2.Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016 |
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| Abstract: | The mechanical behaviors during crimping and expansion as well as the flexibility of coronary stent made of nickel-free stainless steel were simulated in this paper.The longitudinal recoil, radial recoil and the deformation behavior in crimping and expansion for different stent mesh width were investigated.The moment-deflection curve and flexibility of the stent were calculated.The results show that the nickel-free stainless steel stent has smaller longitudinal and radial recoil,and excellent flexibility in elastic bending deformation process. |
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| Keywords: | foundational discipline in materials science nickel-free stainless steel coronary stent mechanical behaviors finite element method |
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