title: Dynamic and fluid-structure interaction simulations of bioprosthetic heart valves using parametric design with T-splines and Fung-type material models.
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.
authors.affiliation: Department of Mechanical Engineering, Iowa State University, 2025 Black Engineering, Ames, IA 50011, USA.
authors.forename: Ming-Chen
authors.initials: MC
authors.lastname: Hsu
authors.affiliation: Center for Cardiovascular Simulation, Institute for Computational Engineering and Sciences, The University of Texas at Austin, 201 East 24th St, Stop C0200, Austin, TX 78712, USA.
authors.forename: David
authors.initials: D
authors.lastname: Kamensky
authors.affiliation: Department of Mechanical Engineering, Iowa State University, 2025 Black Engineering, Ames, IA 50011, USA.
authors.forename: Fei
authors.initials: F
authors.lastname: Xu
authors.affiliation: Department of Civil Engineering and Architecture, University of Pavia, via Ferrata 3, 27100 Pavia, Italy.
authors.forename: Josef
authors.initials: J
authors.lastname: Kiendl
authors.affiliation: Department of Mechanical Engineering, Iowa State University, 2025 Black Engineering, Ames, IA 50011, USA.
authors.forename: Chenglong
authors.initials: C
authors.lastname: Wang
authors.affiliation: Department of Mechanical Engineering, Iowa State University, 2025 Black Engineering, Ames, IA 50011, USA.
authors.forename: Michael C H
authors.initials: MC
authors.lastname: Wu
authors.affiliation: Department of Mechanical Engineering, Iowa State University, 2025 Black Engineering, Ames, IA 50011, USA.
authors.forename: Joshua
authors.initials: J
authors.lastname: Mineroff
authors.affiliation: Department of Civil Engineering and Architecture, University of Pavia, via Ferrata 3, 27100 Pavia, Italy.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Reali
authors.affiliation: Department of Structural Engineering, University of California, San Diego, 9500 Gilman Drive, Mail Code 0085, La Jolla, CA 92093, USA.
authors.forename: Yuri
authors.initials: Y
authors.lastname: Bazilevs
authors.affiliation: Center for Cardiovascular Simulation, Institute for Computational Engineering and Sciences, The University of Texas at Austin, 201 East 24th St, Stop C0200, Austin, TX 78712, USA.
authors.forename: Michael S
authors.initials: MS
authors.lastname: Sacks
keywords: Arbitrary Lagrangian–Eulerian; Bioprosthetic heart valve; Fluid–structure interaction; Fung-type hyperelastic model; Immersogeometric analysis; Isogeometric analysis; Kirchhoff–Love shell; NURBS and T-splines