Tested with CGX 2.20 / CCX 2.20
- Static linear analysis
- Uniform pressure applied to the upper face of various element shapes
- Output of RF shows the resulting distribution of the load to the nodes
- Solid elements must be used in order to separate support nodes from load-affected nodes. Otherwise nodal forces from distributed loads and support reactions would cancel out
| File | Contents |
|---|---|
| solid.fbd | CGX script |
| solid.inp | CCX input |
The upper surfaces are loaded with a uniform pressure.
| Parameter | Value | Meaning |
|---|---|---|
thi |
0.1 | thickness, z dimension in m |
tol |
0.01 | tolerance for location-based set definitions |
The parameters are defined in solid.fbd using the valu command.
The model contains linear and quadratic triangular and quadrilateral separate elements which are extruded in thickness direction. The lower side is fully constrained. A uniform pressure of 100 Pa is applied to the top surfaces of the element (1 m²), such that the resultant force is 100. The nodal forces can be read as % of the total force.
| 2D element in CGX | 3D Element in CCX | |
|---|---|---|
| tr3 ` | C3D6 | linear wedge element |
| qu4 | C3D8 | linear hexaeder |
| tr6 ` | C3D15 | second order wedge element |
| qu8 | C3D20 | second order hexaeder |
The complete simulation is run by
> cgx -b solid.fbd
