摘要
镁合金支架作为未来介入治疗的理想支架越来越受到关注.镁合金具有可降解性和良好的生物相容性优点,但弹性模量和抗拉强度比较低,为获得良好的支架性能,需要重新设计支架结构.利用参数化方法和有限元分析研究支架结构参数对支架力学性能的影响.结果表明径向强度对支架结构的敏感性最高.
Magnesium stents are gained increasing attention as an ideal stent of future interventional therapy. Magnesium alloy has an advantage of biodegradable material and good biocompatibility, but the elastic modulus and tensile strength is relatively low. So the stent structure should be redesigned to obtain good performance. The parametrization method and finite element analysis are used to study the effect of structure on the performance of stent. The results show that the radial strength is most sensitive to the stent geometric dimensions.
出处
《计算机辅助工程》
2013年第A02期424-427,435,共5页
Computer Aided Engineering
关键词
镁合金支架
力学性能
参数化
结构优化
有限元
magnesium alloy stent
mechanical performance
parametrization
structure optimization
finite element
