Tested with CGX 2.19 / CCX 2.19
Click the image to see the animation
- Large displacements
- Plasticity
- Contact (smoothed bi-linear node-to-surface)
- Rigid body with prescribed rotation
| File | Contents |
|---|---|
| pre.fbd | Pre-processing script for CGX |
| post.fbd | Post-processing script for CGX |
| Biegung.inp | CCX input |
| Biegung.py | Python script for history plot |
| Animation.fbd | CGX script to produce the animation |
| test.py | Python script for test run of the example |
Click the image below to open a life SMath worksheet
The parameters can be changed in pre.fbd.
| Parameter | Value | Meaning |
|---|---|---|
R |
1 | radius of the wire in mm |
L |
16 | length of the wire in mm |
R1 |
5 | radius of the fixed tool (die) in mm |
R2 |
2 | radius of the movable tool in mm |
X |
5 | x-position of the center of the die (point A) in mm |
Phi1 |
120 | sector angle of the die surface in ° |
DivR |
2 | number of radial mesh segments in the wire |
DivL |
40 | number of longitudinal mesh segments in the wire |
Div1 |
40 | number of circumferential mesh segments in the die |
Div2 |
20 | number of circumferential mesh segments in the movable tool |
> cgx -b pre.fbd
Node sets
Parts and contact surfaces
> ccx Biegung
> monitor.py Biegung
Extraction of the time history of the reaction moment and the internal energy from the dat file and generation of the corresponding plot
> dat2txt.py Biegung
> Biegung.py
When comparing to the reference solution take care that the FEA model is just half of the wire (symmetry).
| Quantity | Reference | 2xFEA |
|---|---|---|
| Moment in N mm | 980 | 800...920 |
| Energy in mJ | 1290 | 1040 |
The matching is reasonable, given the crude approach for the reference estimates and the coarse mesh.
Create the animation (see on the top of this page)
cgx -b Animation.fbd
Open the results in CGX and create some plots
cgx -b post.fbd
