Week 5 Sphere pressing on a plate

Title: Sphere pressing on PLate

Objective: Simulate sphere pressing on plate and find plastic deformation of plate.

Setup:

1.Material properties:

Sphere- structural steel

Plate- Structural steel NL

2.contacts:

There is one frictional contact between sphere and plate and coeficient of friction between two steel materials is 0.74.

3.Meshing:

Plate is done body sizing with 0.8 mm mesh size and sphere with 1.5mm mesh size.

Number of elements: 9648

4.Analysis settings:

Taken 4 steps as per the video

5.Load:

Fixed support to plate and displacement load given to sphere . sphere is displaced 4mm in downward direction.

6.Symmetry region:

7.Results:

Tabulate results below as per simulation:

Case	Material for plate	Plastic deformation(mm)
1	structural steel NL	3.3905

Conclusion:

1. Sphere is displaced down to 4mm and is retraced back. We can observe directional deformation of plate to be 3.3905 mm. It is plastic deformation and cannot be retained to original shape.