Simulation of projectile impact using SPH
Hello to every one,
I am trying to set up a simulation in autodyn in which I should represent a hypervelocity impact of a particle over an aluminum layer.
The particle is about 0,1 mm with a speed of 1km/s and the layer is thin 0,5 mm.
I am would use SPH discretization because it is what best fit with HVI phenomena simulation, but I am encountering a lot of problems.
The simulations stop every time, after some microseconds, with the error "time step too small" or "degenerate cells".
Can someone give me some advice on the appropriate parameter setting for this type of simulation?