The problem discretization objects in the FEM simulation studies
Fragment książki (Abstrakt)
| Status: | |
| Autorzy: | Korga Sylwester, Duda Aneta, Kalinowska-Ozgowicz Elżbieta |
| Wersja dokumentu: | Drukowana |
| Język: | polski |
| Strony: | 124 - 124 |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | TAK |
| Licencja: | |
| Sposób udostępnienia: | Witryna wydawcy |
| Wersja tekstu: | Ostateczna wersja opublikowana |
| Czas opublikowania: | Po opublikowaniu |
| Abstrakty: | angielski |
| The implementation process of numerical simulation studies of plastic deformation requires the selection of appropriate boundary conditions. Boundary conditions has a significant impact on the final results of the FEM. Each calculation of the FEM test relates to the physical model contained in the space that is local or primary coordinate system. This is an area calculation defined by partial differential equations and the equations defining the behavior of the function on the shore so-called boundary conditions. Each of the models tested has edges and is considered as bounded by the edges. Solid model is divided into sub-areas of simple shapes called finite elements. The calculation process of shaping plastic solver for a metal depends on the number of finite elements, the number of degrees of freedom of the shape and the geometry of the elements. The main purpose of the discretization is to divide the real object model for simple geometric shapes containing nodes and interpolation functions also called nodal or shape. They are used to describe the size distribution analyzed in its interior and on its sides. An important factor considered in the context of the boundary conditions is the size of the finite element. Reducing the size of the finite element results in an increase in the accuracy of the calcu- lation process. In contrast, decreasing the size of the finite elements increase the amount of the finite element model, the computation time extension. A main cause of long calculation time is the amount of equations to be solved. Reducing areas of elements causes the nodal values of the search function, approach to solve much more accurate. So, it was considered necessary to determine the appropriate criterion called meshing density boundary discretization. The paper discusses the conditions for the selection of the finite element discretization process and discusses how they impact on the work of the solver. |
