Element library¶
The WELSIM application supports several types of finite elements. This section discuss the details of element that is used in the program.
| Element type | Finite element type | Description |
|---|---|---|
| Plane element (Shell) | Tri3 | Three node triangular element |
| Plane element (Shell) | Tri6 | Six node triangular element(quadratic) |
| Solid element | Tet4 | Four node tetrahedral element |
| Solid element | Tet10 | Ten node tetrahedral element(quadratic) |
The element groups shown in Table [tab:ch4_theory_elem_types] can be used for engineering analysis. The schematic views and the surface definition of those elements are given in Figures [fig:ch4_theory_elem_views], [fig:ch4_theory_elem_triangles], and [fig:ch4_theory_elem_tet].
| Surface No. | Linear | Quadratic |
|---|---|---|
| 1 | 1-2-3 [front] | 1-6-2-4-3-5 [front] |
| 2 | 3-2-1 [back] | 3-4-2-6-1-5 [back] |
| Surface No. | Linear | Quadratic |
|---|---|---|
| 1 | 1-2-3 | 1-7-2-5-3-6 |
| 2 | 1-2-4 | 1-7-2-9-4-8 |
| 3 | 2-3-4 | 2-5-3-10-4-9 |
| 4 | 3-1-4 | 3-6-1-10-4-8 |