I currently use ANSYS Workbench, does anyone have an idea how can I perform high velocity projectile impact test on different materials using this simulation tool?
Under the circumstances of Ansys/Workbench, the module named "explicit dynamics", "Autodyn" and "LS-DYNA" would be your available choice.
Explicit dynamics is a simple module, usually responsible for engineering purpose, which means it is accessible but over simple. In my impression, this module can only handle with impact analyzing.
Autodyn is a more realistic one, which also developed by ansys corporation. This one can not only tackle with impact problems, but more efficient on explosive related problems. This one have more tutorials on Internet. It is also more research oriented.
LS-DYNA is a software pay much attention on impact dynamic field. First, it is a independent software from other company. However, anays also corporate with them. So that is the reason why you could also see it under ansys/workbench. If you want to use it, it should embed the module named "explicit dynamics" in the workbench. Compared to it's original independent version, this combined or integrated version has less function. But it have potentiality to work with other module under workbench. If you want to use it under workbench, you may have a license. I mean, this license might be a little bit different with workbench's license, it is a extra one.
If you already have access to ANSYS, it makes sense to just make use of its explicit dynamics module. It works well, but it is memory hungry (expected for large-scale nonlinear finite element problems anyway).