Finite element simulation of slotted tube (stent) with the presence of plaque and artery by balloon expansion

摘要: Abstract In this paper, results are presented of nonlinear finite element simulations performed to analyse the interactions between slotted tube (stent) and plaque or artery using method. The post-expansion response in presence was also investigated. analysis packages LS-DYNA explicit solver for solution problem ANSYS (version 5.7) as pre- post-processor. stent subject a pressure load applied on inner surface balloon. Then expands presses against arterial wall. order reduce time, only one-eighth model developed by taking advantage symmetry. A bi-linear elasto-plastic hyperelastic material models were assumed tubes balloons, respectively. used wall defined linear isotropic nearly incompressible. deformation characteristics analysed. stresses due interference discussed.