有色金属材料与工程2024，Vol.45Issue(6)：32-38,7.DOI:10.13258/j.cnki.nmme.20240131001
Ni-Ti合金胆管支架的结构设计与有限元分析
Structural design and finite element analysis of Ni-Ti alloy biliary stent
摘要
Abstract
Abaqus finite element analysis software was used to simulate and calculate the biliary stents with different structures.Three different types of'sine wave'support ring structures were designed,and the influence of different support ring structures on the radial support force of the support was analyzed.The connecting structure was optimized,and an'oblique rod'type connecting structure was proposed to explore the relationship and influence mechanism between the different structures of the connecting bar and the flexibility.According to the results of finite element analysis,the stent with superior radial support force is laser cut and tested experimentally.The results show that the'sine wave'structure with unequal height shows better radial support force of 5.88 N;the'oblique rod'connecting structure shows the best flexibility and significantly reduces the stress concentration,and the maximum stress value is reduced from 863.87 MPa to 589.93 MPa compared with the traditional'straight rod'connecting stent.The results of plate compression experiment show that the radial support force of the support with unequal height'sine wave'support ring structure is 5.78 N,which is approximately equal to the simulation results,indicating the reliability of the simulation results.关键词
Ni-Ti合金/胆管支架/有限元分析/径向支撑力/柔顺性Key words
Ni-Ti alloy/biliary stent/finite element analysis/radial support force/flexibility分类
信息技术与安全科学引用本文复制引用
强雨霖,江鸿,潘思羽..Ni-Ti合金胆管支架的结构设计与有限元分析[J].有色金属材料与工程,2024,45(6):32-38,7.基金项目
上海理工大学医工交叉项目(1022310508) （1022310508）
上海理工大学大学生创新创业训练计划项目(XJ2023494) （XJ2023494）
