Methods of Discretization Objects Continuum Implemented in Fem Preprocessors

Abstract

Finite Element Method (FEM) called Finite Element Analysis is a tool for computeraided engineering and analysis. It is used to solve problems related to changes in the geometry of the structure as a result of external factors. FEM is used to model engineering processes where real objects are converted to discrete models. Finite Element Method uses a method of obtaining approximate solutions by approximation of partial differential equations. The process of testing and mathematical computation model is described by the equations function of the position and time for the nodes. The development of individual models and their groups and definitions of boundary conditions are carried out using computer programs for FEM.

Numerical analysis of stress distribution generated in spherical polyethylene inserts by knee joint endoprotheses’ sleds

“…That gives general shape of endoprostheses and allows to image stress distribution on the insert surface. Figure 3 presents simplifi ed numerical model of sled and insert 19,20 .…”