Challenge

Week 5 Sphere pressing on a plate

Objective: To simulate sphere pressing on a plate using structural steel (Non Linear) for plate and structural steel for sphere.

Procedure for Simulation:

Given geometry of plate and sphere is loaded in Space Claim GUI.
Structural Steel (Non Linear) which is required for our simulation is loaded from engineering materials library
Mechanical module is opened. Geometries are renamed as Plate and Sphere as required. Plate is assigned Structural Steel (Non Linear) material.
Symmetry region is inserted which would simulate results for complete geometry which is symmetrical
Frictional contact is setup between sphere and plate with a frictional co efficient of 0.74
Complete geometry is meshed for a mesh size of 0.8 mm
Simulation is set up for four number of steps. Solver type is set to Direct. Weak springs is set of Off and Large deflections are swtiched On.
Bottom side of plate is fixed. Displacement of 4mm is given to top side of sphere
Displacement is given as such after compressing sphere over plate, the sphere has to retract and reach its initial position
After completing analysis setup as discussed above, solver is asked to solve the simulation
It has to be ensured that, after completing solution the plate should reach plastic region in order to capture the plasticity nature of the plate

Results Discussion:

Equivalent Stress of Plate:

Maximum value- 2851.5 MPa

Minimum value- 39.122 MPa

Equivalent Stress of Sphere:

Maximum value- 482.41 MPa

Minimum value- 0.81104 MPa

Equivalent elastic strain:

Maximum value- 0.01529 MPa

Conclusion:

Sphere and plate plasticity simulation is completed and it is made sure that after compressing the plate it remains in plastic state.

Ship work like this
in your own course.