Machining simulation- Contact detection failed Explicit Dynamics
I'm conducting a 2D plane strain machining simulation in Explicit Dynamics. The program fails to detect the contact between the cutter (rigid) and the specimen (explicit Ti alloy). At first, I thought it could be due to the mesh being too coarse. So I refined the grid near the interface, but the contact is still missed.
Any ideas how to solve that?
I don't need the mesh to be super fine for now, this is just a "test case"/"test setup"