In this tutorial, the high-velocity impact of a bullet on a reinforced concrete (RC) panel is studied and validated against published paper results. The model dimensions are taken directly from the reference paper.
- The concrete slab is modeled as a three-dimensional solid part.
- The steel reinforcements are modeled as three-dimensional wire parts.
- The bullet is modeled as a discrete rigid body.
Material properties are defined based on the paper. For concrete, the Johnson–Holmquist model is applied using a VUMAT code or input file modification to capture damage under high-velocity impact. For steel reinforcement, Johnson–Cook hardening and damage are considered.
The analysis uses a dynamic explicit step with a total step time of 0.001 seconds. General contact with erosion effects is applied to simulate internal failure. Boundary conditions fix all sides of the panel, while the bullet is assigned an initial velocity.
After the simulation, key results such as residual bullet velocity, kinetic energy, deformation, and damage patterns match the paper findings. The residual velocity obtained in the simulation is consistent with the published data.
Additional outputs including stress, strain, and damage distribution are available. Figures of the assembly and results are provided below.
