FEM based simulation of a deformable object

In this paper the progress of Finite Element Method(FEM) based simulation of a deformable object in virtual reality is presented. Mass and stiffness matrix for FEM is calculated from meshed object which is generated from surface model for visualization. Deformation of the object is calculated from obtained matrices and external force at each time step and displayed in real-time. A simple cantilever deformation example and deformation of a kidney model including pushing and pulling was performed and deformation results of two models are presented. Developed simulation framework of deformable object will be implemented in surgical simulation including haptic feedback eventually.