An Efficient Finite Element Framework to Assess Flexibility Performances of SMA Self-Expandable Carotid Artery Stents.
作者： Mauro Ferraro , Ferdinando Auricchio , Elisa Boatti , Giulia Scalet , Michele Conti
DOI: 10.3390/JFB6030585
关键词: Nonlinear system 、 Degrees of freedom (mechanics) 、 Structural engineering 、 Flexibility (engineering) 、 SMA* 、 Bending 、 Buckling 、 Materials science 、 Shape-memory alloy 、 Finite element method
摘要: Computer-based simulations are nowadays widely exploited for the prediction of mechanical behavior different biomedical devices. In this aspect, structural finite element analyses (FEA) currently preferred computational tool to evaluate stent response under bending. This work aims at developing a framework based on linear and higher order FEA flexibility self-expandable carotid artery stents. particular, numerical involving large deformations inelastic shape memory alloy constitutive modeling performed, results suggest that employment allows accurately representing domain getting better approximation solution with widely-reduced number degrees freedom respect FEA. Moreover, when buckling phenomena occur, presents superior capability reproducing nonlinear local effects related phenomena.
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