Thanks, you were right the timestep has been signifficantly increased. The velocity only rose from 2m/s up to 2.25352m/s (5mph), without the altereations in density this adds 11 minutes.
I'm pretty inexperienced with dyna and altering the density just seemed the easiest way to go. For example...
Hi, I'm running a series of problems regarding collision model and I've hit a bit of a snag, was hopping someone could provide some assistance.
I've set up a scenario to run in LS-Dyna to test out a base model from which I intended to develop with more relevent data, this model compiled and...