I actually tried to use refined mesh. Since it is a 3D model and needs quite a lot of memory. It says: can't allocate enough memory. I set the pre-memory and standard memory to be around 2Gb. The PC has 3Gb in total. Do you have any suggestion on that? Thank you.
I have this problem in an indentation simulation. The top layer of elements (sample being indented) which are in contact with the indenter got squeezed to be very thin. Then at some level the top edge of the element will go even lower than the bottom edge. The indenter is still in contact with...