Recommendations for finite element modelling of nickel-titanium stents-Verification and validation activities.

ABSTRACT: The objective of this study is to present a credibility assessment of finite element modelling of self-expanding nickel-titanium (Ni-Ti) stents through verification and validation (VV) activities, as set out in the ASME VV-40 standard. As part of the study, the role of calculation verification, model input sensitivity, and model validation is examined across three different application contexts (radial compression, stent deployment in a vessel, fatigue estimation). A commercially available self-expanding Ni-Ti stent was modelled, and calculation verification activities addressed the effects of mesh density, element integration and stable time increment on different quantities of interests, for each context of use considered. Sensitivity analysis of the geometrical and material input parame

SUBMITTER: Bernini M 

PROVIDER: S-EPMC10411813 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature