Week 10 Bullet penetrating a Bucket Challenge

OBJECTIVE :

To simulate a bullet penetrating into a bucket. You will need to use 3 different non linear materials for the bucket and analyse their behaviour for the same velocity of bullet. Apply the conditions for bullet as mentioned in the video itself.

Case 1 : Al 1100-O

Case 2: Magnesium Alloy NL

Case 3 : Structural Steel NL

Case setup and Execution :

1. use explicit dynamics module.

2. Import the geometry

3. Assign bullet material as tantulum and bucket material as per case 1,2 or 3.

4. Remove all existing contacts.

5. select the edge as shown below and give edge sizing as shown below and mesh the model.

6. In the analysis setting , set end time as 0.001 S and rest keep default value.

7. Set fixed support as shown below.

8. Assign bullet velocity as shown below.

9. Solve the model.

RESULT :

Case 1:

Total Deformation

Equivalent stress

Case 2 :

Total Deformation:

Equivalent stress:

Case 3 :

Total deformation:

Equivallent stress:

Conclusion

	Case 1	Case 2	Case 3
Total Deformation max: mm	159.89	462.05	417.49
Equivalent stress MPa	193.1	2835.9	2717.1

LINK: https://drive.google.com/file/d/1r1zQwXF-q-O5mEg44K55FYg4mz0fM_p8/view?usp=sharing