Week 10 Bullet penetrating a Bucket Challenge

Simulating a Bullet penetrating a Bucket using Ansys:

Objective: To perform a Bullet Penetrating into a bucket using Explicit dynamics:

Case_1- Aluminum Alloy NL

Case_2- Copper Alloy NL

Case_3- Magnesium Alloy NL

Simulation Process:

Create Explicit Dynamics in Ansys workbench and in engineering data select the Material Tantalum from explicit materials and Stainless NL, Aluminium Alloy NL and Copper Alloy NL according to the cases:

Input Geometry:

Import the geometry and check-in space claim for any irregularities. Then open Ansys mechanical and rename the component as Bucket and Bullet then assign the Tantalum material to the bullet and Stainless Steel NL, Aluminium alloy NL and copper Alloy NL material according to the cases to the Bucket and change the stiffness behaviour of the bullet to Rigid.

Mesh:

Body Sizing -The Bucket is meshed by elements Size of 6mm along its edges:

Boundary conditions:

Fixed support- one end of the Bucket is fixed:

Velocity- Bullet provides the velocity of 139000mm/s in negative X directions:

Analysis Setting: Set end time 1e-2, with a maximum number of cycles as 1e+7, maximum energy error set to 5.

Solutions:

All the necessary output variable are selected such as von Mises stress, stress intensity, equivalent strain etc.

Result – The analysis runs successfully and results obtained

Case_1- Aluminum Alloy NL

Case_2- Copper Alloy NL

Case_3- Magnesium Alloy NL

Conclusion: