Computer 3D-modeling of viscoelastic deformation of the aorta

In this study the viscoelastic deformation of human aortic bifurcation was investigated. An algorithm of automated geometric model construction was implemented in the parametric form. We considered the vessel as a hollow cylinder with the walls as an isotropic material. The analysis was carried out using the finite element method. The load was set as close as possible to the real one using a sphygmogram. Different types of pulse waveforms were presented: typical pulse waveform with normal arterial pressure, typical waveform of old myocardial infarction and arrhythmia and considered their influence on the hysteresis loops.