Bullet Impact

This is an assignment for my ME-441 Computer Simulation and Analysis class. In the Computer Simulation and Analysis class ANSYS Workbench and Discovery AIM were used extensively to simulate. Instructions were provided, and sometimes the models, either from Creo Parametric or SolidWorks, were provided as well. Some assignments however need the objects to be modelled from scratch or modified before hand.

The assignment

There are two different assignments involved when simulating the impact of a bullet. In this assignment, the impact of a high-speed bullet when hitting directly at the front of a metal wall is observed using ANSYS Workbench Explicit Dynamic. The bullet is traveling at 400 m/s. The materials used for the bullet and the wall are Copper Alloy NL and Structural Steel NL. NL stands for Non-linear. Under plastic strain failure for Copper Alloy NL, the maximum equivalent plastic strain EPS should be 0.75. The metal wall's behavior and condition should be rigid and fixed.

Result

Transparent view of the bullet hitting from an oblique direction.

In this assignment, the impact of a high-speed bullet when hitting a base plate from an oblique direction is observed using ANSYS Workbench Explicit Dynamic. The materials used for the bullet casing, the core, and the plate are Cart Brass, Lead, and 4340 Steel respectively. The bullet is traveling at 800 m/s at the point of impact. When editing the geometry, the assembly was cut in half so the inside of the bullet and its impact can be seen. By default, under contacts the core and the bullet casing will be in contact with each other. That is to be deleted.

Result