CAE Software【Femtet】Murata Software Co., Ltd.
General
The deformation of a spring plate under forced displacement is analyzed.
If an object is deformed beyond the limit of its elasticity, the large deformation occurs. It is treated as a nonlinear problem.
See Technical Note Analysis of Large Deformation (Geometric Nonlinearity).
The distributions of displacement and mechanical stress are solved.
Unless specified in the list below, the default conditions will be applied.
Item |
Settings |
Analysis Space |
3D |
Model unit |
m |
This is a static analysis.
Select the “Large displacement” option.
This will activate Galileo’s nonlinear solver.
Item |
Settings |
Solvers |
Mechanical Stress Analysis [Galileo] |
Analysis Type |
Static analysis |
Large deformation |
Select “Large displacement”. |
The spring plate is a rectangular solid body. The material is polycarbonate.
The plate is mechanically fixed at one end.
The forced displacement is applied on the other end.
Body Number/Type |
Body Attribute Name |
Material Name |
0/Solid |
PLATE |
000_Polyethylene(PE) * |
* Available from the Material DB
Boundary Condition Name/Topology |
Tab |
Boundary Condition Type |
Settings |
FIX/Face |
Mechanical |
Displacement |
Select all X/Y/Z components. UX=0, UY=0, UZ=0 |
PULL/Edge |
Mechanical |
Displacement |
Select the Z component. Z=-15[m] |
The simulation is divided in 20 substeps. The displacement becomes larger gradually in the steps.
20 results are output for the steps between 0.05[Step] and 1[Step].
The number of substeps is 20 by default. It can be adjusted on the Step/Thermal Load tab.
All the results of substeps are output by default. Only final result of 1[Step] can be output too.
The displacement at 1[Step] is shown below. The contours are the Z displacement.
The scale adjustment ratio on the Displacement tab of the Graphics Setup is set to 1.
The tip of the plate is curling towards -Y direction.
If [Show all results summary] is selected, the external force and reactive force are listed in the table below.
The reactive force at the boundary condition FIX is 6.163e+6[N] in + Z direction at 1[Step].
The external force at PULL is 6.163e+6[N] in -Z direction at 1[Step].
For comparison, the displacement without Large displacement is calculated and the result is shown below.
The tip is not curling up. That is unnatural.