Journal
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING
Volume 34, Issue 10, Pages -Publisher
WILEY
DOI: 10.1002/cnm.3125
Keywords
coronary stent; design requirements; sensitivity analysis; surrogate models; visualization
Categories
Funding
- Portuguese Foundation for Science and Technology (FCT)
- IDMEC
- LAETA [UID/EMS/50022/2013, SFRH/BD/61604/2009]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/61604/2009] Funding Source: FCT
Ask authors/readers for more resources
The main goal of this numerical study is to assess the impact of geometric design perturbations on the performance of a representative coronary stent platform. In this context, first, a design parameterization model was defined for the stent under study. After, a set of metrics characterizing stent performance, namely, vessel injury, radial recoil, bending resistance, longitudinal resistance, radial strength, the risk of fracture, prolapse index, and dogboning were evaluated within the context of a finite element analysis. Afterwards, accurate surrogate models were developed, using the efficient global optimization algorithm, as predictive tools in the execution of tasks that normally require a high number of model evaluations, such as global sensitivity analysis and visualization. In the end, the dependence of the output response surfaces on the geometric parameters was mechanically interpreted, which allowed us to understand the complex interplay that exists between the considered design variables and the defined performance metrics.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available