Optimized Design and Mechanical Property Analysis of Biodegradable Polymer Vascular Stent Structure
A multi-objective optimized method combining finite element and Kriging surrogate model was adopted to design a novel degradable polymer vascular stent structure,and the optimal solution was successfully obtained under the two objectives of radial shrinkage rate and axial shortening rate.The numerical results show that the radial retraction rate is reduced by 58.21%while the axial shortening rate meets the requirements,and the comprehensive mechanical properties are improved.The study shows that the multi-objective optimized method based on the Kriging agent model is effective in improving the design of the comprehensive mechanical properties of vascular stents.