Workshop: Prediction Model Of Depth Of Penetration For Alumina Ceramics Under Garnet Impact In Abaqus

In this tutorial, the prediction model of penetration depth for alumina ceramics under garnet impact in Abaqus is studied. The target and projectile were modeled as three-dimensional parts.

The JH-2 constitutive model was used to describe the response of ceramic materials under high strain rates. This model requires several material constants to fully define the behavior of a specific ceramic.

The target dimensions were 1000 × 400 × 400 μm³. Boundary conditions were applied as follows: nodes on the top face impacted by the particle were left free, while nodes on the other five exterior faces were fixed.

A refined mesh was applied near the impact zone, while a coarser mesh was used farther away. The abrasive particle was modeled as a sphere using rigid 3D solid (tetrahedral) elements. A figure of the assembled part is shown below.

A dynamic explicit procedure was chosen as appropriate for this type of analysis. The garnet particle was assigned an initial velocity of 700 m/s. After impact, the damage variable became visible, and the garnet penetrated into the target. Figures of the simulation results are provided below.