Week 10 Bullet penetrating a Bucket Challenge
BULLET PENETRATING BUCKET CHALLENGE
OBJECTIVES
In this challenge, we have 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 and an animation to show the behaviour in the three cases is attached.
PROCEDURE
- First, we have to input the engineering materials with required properties or else by creating with required properties.
- Then we have to import our model into ansys, import the model and open it in space claim and cut the model into half so that the academic version support.
- Then mesh the component with required mesh size in this assignment we will use
- Mesh – 10mm
- Nodes – 7360
- Elements – 21959
- Analysis setting give the end time as 1e-002, maximum energy error is given as 7 to avoid energy error and Fix one end of the rod and then assign displacement load of 18mm in opposite direction of fixed load for tension test and angle for the torsion test.
- Then give the required solution parameters then solve.
RESULTS
Case 1: Stainless steel NL
Total Deformation
Equivalent stress
Equivalent strain
Case 2: Aluminium alloy NL
Total Deformation
Equivalent stress
Equivalent strain
Case 1: Titanium alloy NL
Total Deformation
Equivalent stress
Equivalent strain
Conclusion
|
|
Total deformation (mm) |
Equivalent strain |
Equivalent stress(MPa) |
|
Stainless steel NL |
625.5 |
0.021647 |
4666.6 |
|
Aluminium alloy NL |
1390 |
0.020832 |
1411.4 |
|
Titanium alloy NL |
1390 |
0.067688 |
8144.6 |
From the above stimulation it is clearly concluded that the stress generated by aluminium alloy NL material is less than other NL materials hence the bullet penetration in aluminium is more compared to stainless steel and titanium alloy.
