Abstract
The study deals with the calculation of the stresses in elastic arterial walls and with the analysis of the interaction of local blood flow and vessel wall motion. While the stress study is primarily carried out in a basic end-to-side bypass anastomosis model incorporating different material properties of the graft and the artery, the flow study is performed in a compliant carotid artery bifurcation model. The displacement and stress analysis uses geometrically non-linear shell theory. The flow analysis applies the time-dependent, three-dimensional, incompressible, Navier-Stokes equations for non-Newtonian inelastic fluids In an iteratively coupled approach the equations of the fluid motion and the transient shell equations are numerically solved using the finite element method.
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