A CATRA test is a standard set for assessing the sharpness of knives and spikes. It involves penetrating a silicone sample with a knife/spike by 3mm at 0.1mm/s and recording the force required to do this.
I'm trying to simulate a coned spike penetrating a silicone cube sample in the same way as this standard. The issue I am having is that the CATRA test takes 30s, which for the explicit dynamics solver seems to be impossible, giving estimated computation times of '****s'.
I have tried reducing comp time using 2D geometry, simple mesh, increasing energy errors and time step safety factors but cant seem to get anywhere near running the simulation to capture 30s of data.
Does anybody please have any advice on how to run long duration transient simulations that could help me with this project?