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Can I read Impact of Nickel–titanium Super-elastic Material Properties on the Mechanical Performance of Self-expandable Transcatheter Aortic Valves on EtoBox?
Impact of Nickel–titanium Super-elastic Material Properties on the Mechanical Performance of Self-expandable Transcatheter Aortic Valves by Dario Carbonaro; Sara Zambon; Anna Corti; Diego Gallo; Umberto Morbiducci; Alberto L. Audenino; Claudio Chiastra is a Engineering article available to read on EtoBox.
What is Impact of Nickel–titanium Super-elastic Material Properties on the Mechanical Performance of Self-expandable Transcatheter Aortic Valves about?
Self-expandable transcatheter aortic valves (TAVs) elastically resume their initial shape when implanted without the need for balloon inflation by virtue of the nickel–titanium (NiTi) frame super-elastic properties. Experimental findings suggest that NiTi mechanical properties can vary markedly because of a strong dependence on the chemical composition and processing operations. In this context, this study presents a computational framework to investigate the impact of the NiTi super-elastic material properties on the TAV mechanical performance. Finite element (FE) analyses of TAV implantation were performed considering two different TAV frames and three idealized aortic root anatomies, evaluating the device mechanical response in terms of pullout force magnitude exerted by the TAV frame and peak maximum principal stress within the aortic root. The widely adopted NiTi constitute model by Auricchio and Taylor (1997) was used. A multi-parametric sensitivity analysis and a multi-objective optimization of the TAV mechanical performance were conducted in relation to the parameters of the NiTi constitutive model. The results highlighted that: five NiTi material model parameters ( E A , σ
Who reads Impact of Nickel–titanium Super-elastic Material Properties on the Mechanical Performance of Self-expandable Transcatheter Aortic Valves?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Dario Carbonaro; Sara Zambon; Anna Corti; Diego Gallo; Umberto Morbiducci; Alberto L. Audenino; Claudio Chiastra
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Engineering (Physical Sciences)