Modelling and convergence in arterial wall simulations using a parallel FETI solution strategy

In: Computer Methods in Biomechanics and Biomedical Engineering, Jg. 11 (2008) ; Nr. 5, S. 569-583
ISSN: 1476-8259, 1025-5842
Zeitschriftenaufsatz / Fach: Mathematik
Abstract:
Arterial walls are characterised by nearly incompressible, anisotropic, hyperelastic material behaviour. Several polyconvex material functions representing such materials are considered and adjusted to experimental data. For all of these functions and for different parameter sets numerical simulations using a three-dimensional model of a diseased artery are performed. A finite element tearing and interconnecting-dual primal domain decomposition algorithm is used to solve the linearised systems of equations. The numerical performance of the different models is discussed with respect to convergence of the linear and nonlinear solvers.

Keywords: anisotropic; biological soft tissues; domain decomposition; FETI; parallel computing; polyconvex