Week 10 Bullet penetrating a Bucket Challenge
Objective : To setup the simulation of the given Bucket and bullet penetration test setup to obtain the desired results.
Setting up the simulation
To set up the simulation, first we need to import all the required material cards such as AL 1100-O, Al6061 and Gold for the bucket
For the bullet Tantalum has been chcosen. The below materials can be found in the Explicit materials library.
For the simulation, we will have 3 test cases in which we will assign the 3 different material for the Bucket.
Importing geometry :
Next we import the geometry and rename them as Bucket and Bullet
Material definition :
Bullet : Tantalum
Bucket : AL 1100-O
Then we will open Ansys explicit dynamics to set up the rest of the simulation.
Body interactions : We create a body interactions collector with all bodies in the set-up.
Mesh : Next we mesh the components.
We apply a sizing along the ege of the bucket and give it a mesh size of 5mm. 
The mesh is generated as shown below.
Analysis Settings :
Next we go to analysis settings to set up the kinematics of the simulation
The analysis is run for an end time 1e-2 and the rest of the analysis conditions are kept as default.
Fixed Support : Next a fixed support is applied at the bottom face of the Bucket.
Velocity : A velocity is then applied on the Bullet in the tabular form as shown of 139e+5 mm/s in the z-direction.
Output Parameters : The following parameters are selected for output from the simulation.
The equivalent stress, total deformation are selected as output parameters.
The simulation is run on 3 cases, which are as discussed below:
Case_1 : Bucket material as Al1100
Case_2 : Bucket material as Al6061
Case_3 : Bucket material as Gold
Running the simulation :
Next we run the simulation. The simulation takes about 109.7 minutes to run as we can see from the runtime below.
Post-processing :
Equivalent Stress :
Case 1)
A total equivalent stress of 230.43 Mpa occurs in the Bucket.
Case 2)
A total equivalent stress of 399.47 Mpa occurs in the Bucket.
Case 3)
A total equivalent stress of 157.23 Mpa occurs in the Bucket.
Total Deformation :
Case 1)
A maximum deformation of 1390 mm occurs in the work piece.
Case 2)
A maximum deformation of 1390 mm occurs in the work piece.
Case 3)
A maximum deformation of 1390 mm occurs in the work piece.
Conclusion :
Hence the simulations have been run as per the desired criteria and the results have been obtained.
The maximum stress occurs in case 2 where the bucket is made of Al6061.
Result : File cannot be attached. Attaching google drive link.
Case_1
Case_2
Case_3