in this weeks spotlight we will have a look at a FEA simulation of a door hinge pin by our user @brdelatti.
This project was created to demonstrate an overpull simulation of an automotive Hinge, like the ones used in car doors. @brdelatti applied an overpull angular displacement on the hinges.
The CAD model was downloaded from GrabCAD member Karem El Shemy.
The geometry was a bit simplified and then uploaded to the SimScale platorm.
Type: Tet-Dominant Mesh
The geometry was meshed using parametrized tetrahedralization.
The mesh is shown below:
1D elements (edges): 3869
2D elements (faces): 44930
3D elements (volumes): 195757
It was used the plastic curve of the thyssenkrupp MHZ340 steel.
The bigger hinge was constrained as fixed support on its holes inside surfaces.
The Pin was constrained as a deformable remote displacement.
And the smaller hinge also as a deformable remote displacement but with a prescribed function considering a rotation of 2 Degrees on the z-axis regarding the axis of the pin.
Machine cores: 16
Run time [min]: 19
Equation solver: MUMPS
As we can see, the plastic strain has occured since the yield strenght (344MPa) was exceeded. Even the 2 Degree forced rotation condition is too much for this case. The leads to the conclusion that the model has to be optimized!
To look at the simulation setup, please have a look at the project from @brdelatti :
To copy this project into your workspace, simply follow the instruction given in the picture below.