Challenge

Week 5 Sphere pressing on a plate

AIM :

OBJECTIVE :

To simulate the sphere ball pressing with two materials, the plate is assigned to the structural steel non-linear, the sphere onto plate 4mm downwards and retract it.
After evaluating results the plastic deformation needs to be captured.

MATERIALS

Structural Steel NL

Structural Steel

PROCEDURE :

SETUP

The ball press geometry is Imported on the space claim module to check any irregularity tor the geometry damage.

After checking the geometry and updating the model in the workbench the model is been opened in the mechanical module with renaming each part properly.

Symmetry

Two symmetry region is provided, as the surfaces are perpendicular to each from both sides.

Contacts

The sphere in contact with the plate to the press is at a particular displacement so one contact region is provided, as type frictional contact, with a friction coefficient of 0.74.

Mesh

Then mesh the component with required mesh size in this assignment we will use . The total number of nodes is 5728 and elements are 1770.

Analysis Settings.

For this simulation, the 4 steps are provided to evaluate the results with Auto time steeping is to be program-controlled with solver types is direct and as we know it is non-linear problem to identify and deflection the large deflection is ON.

As we know the bar to press by the ball, so at the time of pressing the bar should be fixed at one point so the fixed support has been provided at the bottom surface of the bar

The sphere to be press at a particular distance, so the displacement of 4mm is provided by selecting at the top face and the displacement at the opposite Y-axis.

The results to be evaluated for directional deformation, Equivalent elastic strain, equivalent stress, and equivalent elastic strain 2 at the sphere.

RESULTS

The results are equivalent for direction deformation to know the deform surface of the sphere, and the plasticity of the plate.

Directional Deformation

Equivalent von mises stress

Equivalent elastic strain

Equivalent elastic strain 2

CONCLUSION:

After pressing the plate by 4mm distance by the sphere and preventing back to its portion it shows the plasticity of the structural steel Non-linear material of the plate as this shows in the directional deformation at a max of 0.329mm and equivalent elastic strain is of 0.016221 mm/mm.
Simulation of sphere pressing flat plate process conducted with structural steel as sphere material and structural steel NL as plate material. From the analysis it is found that beyond the elastic limit the material remains in the plastic state, even after removal of load.

Ship work like this
in your own course.