Product Overview:

In this tutorial, we explore the simulation of the cold spray process involving ceramic particle impacts on a titanium target within Abaqus. The ceramic projectile is modeled as a three-dimensional sphere with a radius of forty micrometers, representing the minimum size allowed by Abaqus. The titanium target is also modeled as a three-dimensional part, with a larger size utilized than that of the real target for simulation purposes.

For this simulation, the titanium material is characterized as elastic-plastic using the Johnson-Cook model, which effectively predicts deformation under rapid loading conditions and incorporates Johnson-Cook damage to identify the damaged zones. The behavior of the ceramic material, simulating silicon carbide under high-velocity impacts, is represented using the Johnson-Holmquist ceramic model, as recommended by Abaqus.

The simulation employs a dynamic explicit step, utilizing a surface-to-surface contact algorithm with defined contact properties. A fixed boundary condition is applied to the titanium target, while an initial velocity is assigned to the ceramic projectile. Although a finer mesh is essential in the contact zone, constraints related to model dimensions limit the extent to which the mesh can be refined at the micrometer scale.

After conducting the simulation, various results are obtained, such as stress, strain, plastic strain, and damage information.