I have two identical models. The only difference between the models is the mesh size. As the ball impacts the model with the finer mesh, the ball penetrates. This is what is suppose to happen. However, When I run the model with a coarser mesh, The ball does not fully penetrates the model like the finer mesh. I have used ABAQUS and never had this problem, is there something in Ls-Dyna that I am not aware that I need to add to get the same penetration as the finer mesh with the coarser mesh?