Week - 3 Drop test Challenge

Objective:- We need to do a drop test analysis on the given mesh.

Procedure:-

1. Import the given.key file in the Ls-Pre post.
2. 
3. We have three parts.
4. Part-1:- Shell elements that can be used as the floor.
5. 
6. Part3:- Solid elements that can be used as a phone.
7. 
8. Part4:- Solid elements we can delete the part since we can use the shell elements as floor.
9. Sections:- We have to create two sections for both Shell and solid elements.
10. Go to Keyword manager -> All -> Section -> Shell.
11.   
12. Create a shell section card. we have to assign the 
13. 
14. Create a Solid section card for solid elements.
15. 
16. We need to create materials for both phone and plate.
17. Here Plate is a rigid body, So we can go with Mat20(rigid).
18. 
19. For phones, we can create Mat24(piecewise linear elasticity).
20. 
21. We need to define the velocity for the Phone.
22. Create a node-set ID for the Nodes of the phone.
23. 
24. Add the node-set ID in Keyword of *INITIAL_VELOCITY
25. 
26. We need to Create a Boundary_Spc_Set for the plate elements to constrain them in all directions.
27. 
28. Create an automatic surface to surface contact between the Phone(Slave) and Plate(Master).
29. 
30. Create a *DATABASE_BINARY_D3PLOT
31. 
32. Create the termination card.
33. 
34. Save the model.
35. Run .k model in Ls-Run.
36. 

Results:-

1. Stress-induced on the phone.
3. We can observe the kinetic energy of the system.
4. 
5. We can observe the kinetic energy was constant until it hits the ground after that there is a drop in Kinetic energy when it hits the ground.
6. 
7. The internal energy was created while the collision of the phone with the plate.