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. Attach an animation to show the behaviour in the three cases.
procedure:
- Open explicit dynamics and add aluminium,magnisium,titanium,tantulum materials to the library
aluminium:
Magnesium:
Titanium:
Tantalum:
- import the geometry.and open the mechanical apdl
- rename parts as bullet and bucket and change the stiffnes behaviour of bullet as rigid.add aluminium material to the bucket and tantalum to the bullet.
- In meshing insert sizing with edges select two edges and element size of 2mm and generate mesh
- in analysis settings end time as 0.01s and maximum energy error is 5
- insert fixed support as bottom of the bucket and insert velocity of bullet 139000mm/s in xdirection
- insert output parameters of total deformation,equivalent stress,equivalent strain then run the simulation
- for case 2 change the bucket material magnesium and run the simulation.
- for case3 change the bucket material titanium and run the simulation
RESULTS:
Case1:
Total deformation:
Equivalent stress:
Equivalent strain:
Case2:
Total deformation:
Equivalent stress:
Equivalent strain:
Case3:
Total deformation:
Equivalent stress:
Equivalent strain:
| Total Deformation | Equivalent stress | Equivalent strain | |
| alluminium | 1396.2 | 217.85 | 0.0038044 |
| Magnesium | 1396.3 | 390.87 | 0.96132 |
| Titanium | 1416.1 | 10009.9 | 0.025374 |