Dynamic and fluid–structure interaction simulations of bioprosthetic heart valves using parametric design with T-splines and Fung-type material models

Date
2015-06-01
Authors
Hsu, Ming-Chen
Kamensky, David
Hsu, Ming-Chen
Xu, Fei
Kiendl, Josef
Wang, Chenglong
Wu, Michael
Mineroff, Joshua
Reali, Alessandro
Bazilevs, Yuri
Sacks, Michael
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Mechanical Engineering
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Abstract

This paper builds on a recently developed immersogeometric fluid–structure interaction (FSI) methodology for bioprosthetic heart valve (BHV) modeling and simulation. It enhances the proposed framework in the areas of geometry design and constitutive modeling. With these enhancements, BHV FSI simulations may be performed with greater levels of automation, robustness and physical realism. In addition, the paper presents a comparison between FSI analysis and standalone structural dynamics simulation driven by prescribed transvalvular pressure, the latter being a more common modeling choice for this class of problems. The FSI computation achieved better physiological realism in predicting the valve leaflet deformation than its standalone structural dynamics counterpart.

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<p>The final publication is available at Springer via https://doi.org/<a href="http://dx.doi.org/10.1007/s00466-015-1166-x" target="_blank">10.1007/s00466-015-1166-x</a>. Hsu, Ming-Chen, David Kamensky, Fei Xu, Josef Kiendl, Chenglong Wang, Michael CH Wu, Joshua Mineroff, Alessandro Reali, Yuri Bazilevs, and Michael S. Sacks. "Dynamic and fluid–structure interaction simulations of bioprosthetic heart valves using parametric design with T-splines and Fung-type material models." Computational Mechanics 55, no. 6 (2015): 1211-1225. Posted with permission.</p>
Keywords
Fluid–structure interaction, Bioprosthetic heart valve, Isogeometric analysis, Immersogeometric analysis, Arbitrary Lagrangian–Eulerian, NURBS and T-splines, Kirchhoff–Love shell, Fung-type hyperelastic model
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