NUMERICAL SIMULATION OF THE STRESSES DISTRIBUTION ON NORMAL AND CALCIFIED NON UNIFORM THICKNESS BIOPROSTHETIC HEART VALVES

The stress distributions on the porcine aortic valves in closed position are simulated with nonlinear finite element Eight node super parametric shell element is used during the analysis The difference of the stress distribution between non uniform thickness leaflet and uniform thickness leaflet is analyzed It is found that the leaflet thickness has influence on the stress distribution Further the stress distributions of normal leaflet and the leaflet with a few calcified areas are analyzed It ...